What error did Andy make, and what is the correct solution to his problem? AAndy made an error with the distributive property in Step 2, x=12.5

BAndy made an error with the distributive property in Step 2, x=7.5
. C
Andy made an error with the subtraction property in Step 2, x=12.5
.
D
Andy made an error with the associative property in Step 2, x=7.5
. PLEASE EXPLAIN

y=mx+b is the final answer!   : )

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

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