Answer:
P = 40p + 60
Step-by-step explanation:
The formula of a perimeter of a square withe side a:
P = 4a
We have a = 5(2p + 3).
Substitute:
P = 4[5(2p + 3)] use the distributive property
P = 4[(5)(2p) + (5)(3)] = 4(10p + 15) = (4)(10p) + (4)(15)
P = 40p + 60
