Please help ( I will give brainliest)

256 square units

Step-by-step explanation:

The area of a square is the length of one of the sides of the square squared

First square's area:

(3x+7)^2

=9x^2+42x+49

Second square's area:

(5x+1)^2

=25x^2+10x+1

The squares are the identical, so the areas are equivalent

9x^2+42x+49=25x^2+10x+1

solve for x

9x^2+42x+49=25x^2+10x+1

-16x^2+32x+48=0

use the quadratic formula

x=-1, x=3

if you substitute x for -1 for both squares' sides, the blue side comes out positive but the green square's side comes out negative, which is impossible, so we can eliminate that answer.

substituting x=3 for the sides, we get 16 as the side for both.

16^2=256

256 square units is the answer.

1/12

Step-by-step explanation:

There are 4 members total (Amir, Bobby, Cario, and Dante). You have to set up an equation:

1/4 *1/3

You get 1/4 from Cario because there is only one of him and 4 members present. Then, you get 1/3 from Amir because, again, there's only one Amir and this time only 3 members to choose from, since Cario was already picked beforehand.

Multiply 1*1 to get 1. And then multiply 4*3 to get 12. Your final answer should be 1/12