ASAPPP PLS Both of the questions pls

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

In which form is the following function written? y = - 2(x – 3)(x + 5)

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?