8.67 × 10^9
you take the decimal and move it over till you only have one number before the decimal. The number of times you moved the decimal is the power that it is put to. In this case the decimal was moved 9 times to it is 10^9.
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Question
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Split the fraction on the left
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Take away h/5 from both sides
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Change the denominator to be the same
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Put it into single fraction
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Rearrange (This step may not be necessary)
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Answer:
0.57 hours
Explanation:
4 ÷ 7 = 0.5714285714285714
Rounded to the nearest 100th is :
0.57
Answer=$1,862
1/4 of $7,448
1/4*7,448=$1,862