Can you plz help me with this?

y=35

you put 4y-100-4y =180

4+4= 8 so it's 8y-100=180

180+100=280 then 280/8 is 35

so y=35

n

step-by-step explanation:

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