Manuela makes $21 in commissions over the first three hours that she worked selling magazines. how many dollars must she make during the fourth hour to average $8 an hour for the full four hours

Add the fractions and simplify 1/2+ 1/3

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality