Question

please give the correct answer this is important please​

Answer 1

first one is 69

second one is 8

Answer 2

Answer:

1)

$s = 5 \times 3 + \frac{1}{2} \times 12 \times {3}^{2} \\ 5 \times 3 + \frac{1}{2} \times 12 \times 9 \\ 15 + \frac{1}{2} \times 108 \\ 15 + 1 \times 54 \\ 15 + 54 \\ 69$