It’s urgent please help

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 tile along the edge of a triangular community pool needs to be replaced? ?

The area of a circle is equal to 1 dm². find the radius of the circle.