Simplify the expression:
9v–4v+7v

Triangle xyz has vertices x(1,3), y(0,0)

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? )

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation.