(3x2) ^2 + 15 divided by 5 - 9

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Write a similarity statement for the similar triangles. afgh ~ a

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?