An aircraft cost 2852 per hour to operate, what is the total cost for 5.7 hours
I like Nancy's answer, but want to add to it.
This can also be written as...
However, I think your instructor wants to see the former. I just want to illustrate as much as possible...
Let's cancel units where appropriate...
The hours are in both the denominator and numerator of the left side...
Cancelling units must come before calculations. This is because if your units are not aligned, you have the wrong equation.
The only unit remaining is the $. Your answer is requesting "total cost". This works.