Tara solved the following problem by doing the work shown. Which property did she use? (-2 · -8) · 9
= -2 · (-8 · 9)
= -2 · -72
= 144

identity property of multiplication
associative property of multiplication
commutative property of multiplication

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.

Which is the focus of a parabola with equation y2=4x

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x