Aluminium costs $8.27 per square foot. Julio is trying to find the cost of the building an aluminium storage box shaped like a prism. The storage box needs to be 15 feet wide and 8 feet tall. It must hold 780 cubic feet of material. Find the cost of one box

step-by-step explanation:

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n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm