5 7/8−(3 1/2+1 1/4)? (9 1/2−3 7/8)+(4 4/5−1 1/2)
(12 1/3+5 1/3)−(7 4/8−7 1/6)

Simplest form.

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?