Question 3 A plumber charges a flat fee for each visit, plus $45 per half hour. The expression below represents the plumber's total charge for one visit to fix a broken pipe in Jennifer's house
45 (3 x 2) + 60
What does the 3 represent in this expression?
A
the number of hours it took to fix the pipe
B
the flat fee per visit
с
the number of half-hours it took to for the pipe
D
the number of visits the plumber made