Answer:
10x-10
x-width
Step-by-step explanation:
width-x
4x-5-length
formula for P of rectangle- (a+b)2
(x+4x-5)2
(5x-5)2
=10x-10
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52
5x-22+4x+4 = 90
9x-18=90
9x=108
x=12
4*12+4
