If 140 bricks are used to build a wall 20 feet high, how many bricks will you use to build a wall 30 feet high?

What is the inverse of the function f(x)=4x+8

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?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?