57910000 kilometer
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(57.91 *10^6) k.m
if you move the dot to left you have to increase the power of ten
7 1/2 - 1 1/4 = 7 2/4 - 1 1/4 = 6 1/4

➭Doing it all using mental math
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<u>Step 1:</u></h2>

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<u>Step 2:</u></h2>
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Answer:
this aint a question right?
Step-by-step explanation: