Question

Can anyone please help me on at least one of them or all that will be lovely thank you

Answer 1

Explanation:

1. 6*6 + 6*12

= 36 + 72

= 108.

2. 3*5 + 3*5 + 3*14

= 15 + 15 + 42.

= 72.

3. 10*4 + 1/2 * 4*4

= 40 + 8

= 48.

4. 12*6 + 1/2 * 12 * 3

= 72 + 18 = 90.