Answer:
Your answers are correct. However, the instructions say to write the formula, and in my class you would write A= bh ÷ 2.
Step-by-step explanation:
However, the instructions say to write the formula, and in my class you would write A= bh ÷ 2. Also, you may want to write A= for every line of math that you do. If your class doesn't do that, then disregard that. :)
The base's length is 8 and it's width is 7, so it's perimeter will be

. To find the lateral area you shoul multiply this with it's height. So,

(h is height).
The answer to your problem is a+6x+5.