Amy was absent for 12 out of 180 days of school last year. What percent of the school year was she absent for?

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

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?

Abank gives 6.5% interest per year. what is the growth factor b in this situation?