Help pls with number 4 on second photo and do whatever you can on day Wednesday pls I will mark brainliest thx peeps :)

Abank gives 6.5% interest per year. what is the growth factor b in this situation?

Factor the polynomial. b^2 + 4b + 4

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?