A plumber charges $50 to come to a house and $20 an hour for work time.
If h represents the number of hours worked, which expression gives the total amount the plumber charges?
a.
50h + 20
b.
20h + 50
c.
20(h + 50)
d. + 50
Since the 50 remains the same every time, is has no letters next to it in the equation. Â The 20, however, is multiplied by the amount of hours, and will therefore have an h next to. Â
