Answer:
U=57.6
Step-by-step explanation:
The answer to this question would be the first box (left hand side). Hope that helps :)
Hey there! I can help you with part of your homework! :)
14. Solve.
(
): (
)
First, let's concentrate on 
We must find the common denominator.
The common denominator is 91! :)

Yeah! Now for the numerators:



Now we can add those two fractions:

Hope it helps!