Answer:
![a \: 3x - 6 \\ b \: 2y + 8 \\ c \: 8x + 24](https://img.qammunity.org/2021/formulas/mathematics/high-school/ad418889ftyqa2l6mpk6ywqux4v78wxcoz.png)
Explanation:
All we have to do is multiply accordingly. I'll use a for an example.
So for the value before the perentheses we multiply that by all of the values in the perentheses.
![3x \: and \: - 6](https://img.qammunity.org/2021/formulas/mathematics/high-school/ckdfktzn4x4hz9r0omczjxcmddnkppue5n.png)
So the correct answer would be
![3x - 6](https://img.qammunity.org/2021/formulas/mathematics/high-school/l87kkzyzprp0wc0hhsh5b8fckvfrqg321t.png)
You can use the same strategy for all the questions, but I'll just answer those straight away.
Also you may notice I put the variable before the constant in question c because the variable should always go before the constant in expressions and equations.