Answer:
R = [tex]\frac{NP+C}{N}[/tex]
Step-by-step explanation:
Given
P = R - [tex]\frac{C}{N}[/tex] ( multiply through by N to clear the fraction )
NP = NR - C ( add C to both sides )
NP + C = NR ( divide both sides by N )
[tex]\frac{NP+C}{N}[/tex]
