Charlie's company makes solid balls out of scrap metal for various industrial uses. For one project, he must make copper balls that have a radius of 6 inches. If copper cost $0.75 per inch(cubed) , how much will the copper cost to make one ball? Use 3.14 for π, and do not round your answer.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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step-by-step explanation:

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation: