The perimeter is equal to 25t + 7.
W = 6t - 6.5
L = 6.5t + 10
P = 2l + 2w
Plug the values for l and w into the third equation to solve for perimeter.
P = 2(6.5t + 10) + 2(6t - 6.5)
Distributive property.
P = 13t + 20 + 12t - 13
Combine like terms.
P = 25t + 7
