Answer:
a 4x
b 16x
c. 16x +20
Step-by-step explanation:
Area of square = (lenght of 1 side)^2
[tex] = \sqrt{16 {x}^{2} } = 4x[/tex]
4x = length of 1 side
b/
P = 4 length = 16x
c/each side length = 4x +5
New P = 4 (4x+5)
= 16x + 20
will increase by 20