Need this done too please

B : y = 4a - 1

Step-by-step explanation:

Okay, let's first get the m(slope) by doing doing 11 - 7 over 3 - 2, we get 4/1.

4/1 = 4 so m = 4. Now, let's do 4 * 2(first a term doesn't matter which one im just using the first) 8, and the y is 7, which means the b = to

-1.

Since the b= -1, and m = 4, so that means the answer is B

y = 4a - 1

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk