A plumber charges customers $48 for each hour worked plus an additional $9 for travel. If h represents the number of hours worked, which of the following expressions could be used to calculate the plumber's total charge in dollars?

48 + (9 * h)

48 + 9 + h

(48 * 9) + h

48 * 9 * h

(48 * h) + 9

thats not one of the answers

cost=9+48*h

To calculate the plumber's total charge, you need to add the charge for the number of hours worked to the travel charge.

The given expression is $48 for each hour worked plus an additional $9 for travel.

Therefore, the correct expression to calculate the plumber's total charge in dollars is:

48 * h + 9

So the answer is: (48 * h) + 9