The store has 28 notebooks in packs of four. three packs of notebooks are sold. how many packs of notebooks are left?

Find the value of ax 4 ; a = 2, x = 1. select one: a. 2 b. 4 c. 1 d. 8

Which of the choices shown could be used to prove that aacp=abcp ?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?