Pieter wrote the equation 7h  – 5(3h  – 8) = –72 to model the number of hours it takes to dig a well to a level of 72 feet below sea level. how many hours will it take to dig the well?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

If g^-1(x) is the inverse of g (x) which statement must be true