Concrete can be purchased by the cubic ft. How much will it cost to fill a 18 ft by 18 ft by 4 ft slab if concrete costs $2 per cubic ft.

cost = 1296 × 2 = $2592

Step-by-step explanation:

The concrete is likely a rectangular prism base on it dimension . The width,  length and height is known. The volume of the prism should be calculated since the concrete prize is known base on it volume.

volume of a rectangular prism = Lwh

where

L = length

w = width

h = height

volume = Lwh

volume = 18 × 18 × 4

volume = 1296  ft³.

The cost of the concrete is $2 per cubic ft. Therefore, the volume for 1296 ft³ can be calculated below

$2 is the cost for 1 cubic fit

how much for 1296 cubic ft

cross multiply

cost = 1296 × 2 = $2592

5104.38 inches

step-by-step explanation: