A circular picture is 8 inches in diameter.What is the area of the picture in square inches?

Mathematics

1 answer:

KatRina [158]3 years ago

5 0

To find area
R*R*3.14

D=8
R=4

4*4*3.14= 50.24in

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Let's calculate how much for the $12 t - shirt after the discount.

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$40\% = 0.4$

Next, multiply the cost by the discount,

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Lastly, subtract the amount discounted,

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Now

Let's calculate the amount after the sales tax,

First convert 9% to a decimal,

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Next, multiply the cost of the t - shirt by the sales tax,

$7.2 \times 0.09 = 0.648 = 0.7$

Lastly, add the amount of sales tax to the price of the t - shirt,

$7.2 + 0.7 =7.9$

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Answer : the t - shirt will be $7.90 after everything.

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