The Raymond family is building a pool in their backyard. If the contractor chargest $4.50 per cubic foot to excavate, how much money will it cost to dig out the hole for the pool?

Question

Answer 1

(12x5x14.5 + 7x4x5) x $4.50

= (870+140)(4.5) =(1010)(4.5) = $4,545 = total cost

the hole can be viewed as the sum of 2 adjoining holes, one is a box shaped as 12 feet by 5 feet by 14.5 feet. the 2nd hole is 19-12= 7 feet by 5 feet by 4 feet