He payed 0.72
First you take 2.88, then you multiply it by 1/4 or a simpler way would be to divide 2.88 by 4. The answer is $0.72
First off, we'll convert the mixed fraction to "improper" and check about, keeping in mind that, there are 5280 feet in 1mile.

The distance between them is 9.
I can’t see planet a and b can you show me what it says
Answer should be 108 would you mind sending a visual so I can be sure