helpppp meee plzzz I will give you 13 points. lol

Answer:
f = 560
Step-by-step explanation:
reduce the fraction with 3
[tex]\frac{f}{791}[/tex] = [tex]\frac{80}{113}[/tex]
simplify the equation using cross-multiplication
113 f = 63280
divide both sides of the equation by 113
f = 560
and your answer is
f = 560