Cement costs $76 per cubic yard. What is the cost of cement for a sidewalk that is 4 inches thick, 3 feet wide, and 40 feet long? (Calculate the problem using fractions to avoid rounding errors caused by repeating decimals.)

Step-by-step explanation:

1. Volume of concrete

The formula for the volume of a rectangular prism is

V = lwh

Data:

 l = 40 ft

w =   3 ft

h =   4 in = ⅓ ft

Calculation:

V = 40 ft × 3 ft × ⅓ ft = 40 ft³

2. Convert cubic feet to cubic yards

3. Calculate the cost

$76 buys 1 yd³ of concrete.

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step-by-step explanation:

60.9774

step-by-step explanation:

because when you add 47.6 plus 7.32 equals 54.92

and when you add .0574 + 6= 6.0574

and when you add 54.92 and 6.0574 you get the answer of 60.9774.

plzz mark brainlest last one got deleted. cause i didn't explain it but i did but i understand what the mod meant