Factor completely 9r^3-72r^2

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

What is the lcm of 16 and 40 ? 24 and 40 ?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )