At the veterinarian’s office, terri learned that her dog weighed 4 times as much as her cat. together the pets weighed 40lbs. how much did the dog weigh

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?