What is the value of (x)

x = -2

Step-by-step explanation:

12 + x = 10

x = 10 - 12

x = -2

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

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.