Equations
Solve for x: x - 15 = -15
0
Solve for x: x - 23 = -65
-42
Solve for x: -3x - 26 = 160
-62
Solve for x: 5x - 14 = 3x + 20
17
Find the interquartile range: 9, 3, 5, 7, 16, 2, 1
5
Find the percent of decrease: original price: $ 50 new price: $30
40% decrease