262.5 miles
explanation 1/4 is half of 1/2 so 52.5 is half of 105 and then 210 for an hour of travel
They will be 400 miles apart in 4 hours.
Length of each side of cube is =

SO the volume of cube =

=

=

=

SO the volume of cube is
Answer: [C]:
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" Equation F can be written as 4n + 1 = 6n + 8. "
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