Factor the greatest common factor from the expressions below to find an equivalent expression.
7: 6x + 12
8: 9a - 7 - 2a + 56
8: 2j + 16
9: 10p + 30p - 20

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Sum is 17 and their difference is 3

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks