Martha earns $12.47 per hour. john makes 3 times as much as martha. how much does john earn per hour? a.$36.00 b.$37.21 c.$37.41 d.$36.41 me asap

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?