75 is 150% of what number?

Can someone me with my hwplz(only the circled ones)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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?