89 + z = -38, z =
what is the answer

How do i do this? i don’t understand

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?

The radius of a sphere is 3 inches. which represents the volume of the sphere?