Perimeter and Area of a Composite Figure

Question

Fencing costs $5.45 per foot and sod costs $0.62 per square foot. To allow for measurement error, Carter plans to buy an extra 10% of both materials. How much will it cost Carter to purchase these materials?

Answer 1

Assuming I am understanding the question correctly, you have an area, A, which you need to fill with sod, and a perimeter, P, which you need to fence. Break down them parts individually first

1.1(5.45)(P) = cost for perimeter fence

1.1(0.62)(A) = cost for area sod

the 1.1 comes from the added 10%(0.1) to the 100% (1)

Hope this helps