I hope this helps you
3.t^2.square root of 7
Answer:

Step-by-step explanation:
Given the expression:

Using the distributive property: 

Simplify:

Simplify:

Therefore, the simplified given expression is, 
2* 100 + 2 * 65 = 330 perimeter
100 * 65 = 6,500 area
2*90 + 2*75 = 330 perimeter
90 * 75 = 6,750 area
The answer should be D. 70%.
Hopefully that helps! :)