1)( 15+cj)^3 for j = 5 and c = , ( 15+6*5)^3 = (45)^3 = 91125
Oh man, this is the easiest college level math question that I could find as a middle schooler. I would say 8, but it's probably the wrong answer, so um bye.
A reciprocal just flips the fraction
1. 
2.
3. Before it is flipped it is
but it turns into 
Hope this helps!
Click in cell D5.
Then use this formula:
=round(B5/B4, 4)
Example:
b4 = 3.2165
b5 = 21.43
In cell d5, type =round(b5/b4) and press Enter.
cell d5 contains 6.6625.
Answer:
=round(b5/b4, 4)