Answer/Step-by-step explanation:
A.
![4b + 3b](https://img.qammunity.org/2021/formulas/mathematics/high-school/mg09uq84yqn2d8zs0yag5oo6r33jn71694.png)
Using b = 2
![4(2) + 3(2) = 8 + 6 = 14](https://img.qammunity.org/2021/formulas/mathematics/high-school/g1vklyyt4j28bdmzilkhvgek2f43gdrnmg.png)
Using b = 4
![4(4) + 3(4) = 16 + 12 = 28](https://img.qammunity.org/2021/formulas/mathematics/high-school/j50vvcqyd8cpi9f3kzbkiwe24v8du51w4e.png)
Using b = 6
![4(6) + 3(6) = 24 + 18 = 42](https://img.qammunity.org/2021/formulas/mathematics/high-school/do8vnefegi87r5wzgo3vc81dp1zx05ck60.png)
Using b = 8
![4(8) + 3(8) = 32 + 24 = 56](https://img.qammunity.org/2021/formulas/mathematics/high-school/vumueqk8xqedzjqxh6tje4tnly63uyun8r.png)
Using b = 10
![4(10) + 3(10) = 40 + 30 = 70](https://img.qammunity.org/2021/formulas/mathematics/high-school/a4ns3ps0lsxtmmgfjix9zayls6p7mwxzzr.png)
Using b = 2
![4(12) + 3(12) = 48 + 36 = 84](https://img.qammunity.org/2021/formulas/mathematics/high-school/nwwjrkslfbn47czedo5iakj1pzt54usb32.png)
B.
![3(x - 2)](https://img.qammunity.org/2021/formulas/mathematics/high-school/itpysftlct7ffcp4pem72p0dnl7om1myv8.png)
Using x = 3
![3(3 - 2) = 3(1) = 3](https://img.qammunity.org/2021/formulas/mathematics/high-school/f5j74i70e9u91spqy56ifhek4q5z03fyl0.png)
Using x = 5
![3(5 - 2) = 3(3) = 9](https://img.qammunity.org/2021/formulas/mathematics/high-school/c5v5p1592wirls4j35xref58p5zh7wq1qt.png)
Using x = 7
![3(7 - 2) = 3(5) = 15](https://img.qammunity.org/2021/formulas/mathematics/high-school/gmjr4vkwkqdfv27j4ryov0i922nhagj7rg.png)
Using x = 9
![3(9 - 2) = 3(7) = 21](https://img.qammunity.org/2021/formulas/mathematics/high-school/60fipop7k4uq83xadse1iwqaupm6tgaa0b.png)
Using x = 11
![3(11 - 2) = 3(9) = 27](https://img.qammunity.org/2021/formulas/mathematics/high-school/kjjhl78vk34d2b2e7jfjjec3w2w8azdtg8.png)
Using x = 13
![3(13 - 2) = 3(11) = 33](https://img.qammunity.org/2021/formulas/mathematics/high-school/we1kubh22fo2b81tqd3d6samdalj6rbsgc.png)
C.
![5(4a - 1)](https://img.qammunity.org/2021/formulas/mathematics/high-school/uximv4kirwjz5vni3uujrr6yn999ugj30g.png)
Using a = 2
![5(4(2) - 1) = 5(8 - 1) = 5(7) = 35](https://img.qammunity.org/2021/formulas/mathematics/high-school/skx3ebug6j4l7uf4jo9tcrki9b4d04e5th.png)
Using a = 3
![5(4(3) - 1) = 5(12 - 1) = 5(11) = 55](https://img.qammunity.org/2021/formulas/mathematics/high-school/rblr4jivzw4489t2hmcl63v0hnjvmk6bem.png)
Using a = 4
![5(4(4) - 1) = 5(16 - 1) = 5(15) = 75](https://img.qammunity.org/2021/formulas/mathematics/high-school/d6d64w6kyujzs47eulqpsbvc3lf5yjm8b4.png)
Using a = 5
![5(4(5) - 1) = 5(20 - 1) = 5(19) = 95](https://img.qammunity.org/2021/formulas/mathematics/high-school/3ibrdf2gss5wwvqdfjqxigabhvu09r0je2.png)
Using a = 6
![5(4(6) - 1) = 5(24 - 1) = 5(23) = 115](https://img.qammunity.org/2021/formulas/mathematics/high-school/nmt8f6dtw3580qutchzzcxjk14wf9r2cko.png)
Using a = 7
![5(4(7) - 1) = 5(28 - 1) = 5(27) = 135](https://img.qammunity.org/2021/formulas/mathematics/high-school/3ly1wxus61uvc1fiat05in3a6tnde0i040.png)
D.
![6y - 2y + 4](https://img.qammunity.org/2021/formulas/mathematics/high-school/8u5n5u9d9cusonutrgh00oex2ais2r8qle.png)
Using y = 2
![6(2) - 2(2) + 4 = 12 - 4 + 4 = 12](https://img.qammunity.org/2021/formulas/mathematics/high-school/vbfkjsey12wkgub0lb0m1bcs27oo6n889t.png)
Using y = 3
![6(3) - 2(3) + 4 = 18 - 6 + 4 = 18 - 2 = 16](https://img.qammunity.org/2021/formulas/mathematics/high-school/xw30nw1uu1an8s9da48wpgbvwj2gxlbvgb.png)
Using y = 5
![6(5) - 2(5) + 4 = 30 - 10 + 4 = 30 - 6 = 24](https://img.qammunity.org/2021/formulas/mathematics/high-school/o9hnshauxzgzwo3o25h80hbyemfrgu5y0j.png)
Using y = 10
![6(10) - 2(10) + 4 = 60 - 20 + 4 = 60 - 16 = 44](https://img.qammunity.org/2021/formulas/mathematics/high-school/n3uf3yahvr69vfjsd0hvgo6k7p3ssggkab.png)
Using y = 8
![6(8) - 2(8) + 4 = 48 - 16 + 4 = 48 - 12 = 36](https://img.qammunity.org/2021/formulas/mathematics/high-school/be1drv1rrph5l0b882xglnbaqio3v3nu30.png)
Using y = 6
![6(6) - 2(6) + 4 = 36 - 12 + 4 = 36 - 8 = 28](https://img.qammunity.org/2021/formulas/mathematics/high-school/w54n7iog51zajxb0a6d8t86ikkybdig5pf.png)