QUESTION 30

A plumber's labor charge is $75 to start a job plus $30 per hour for the time required to

complete the job. Ify represents the plumbers total labor charge, and x represents the

time in hours required to complete the job, then which equation is a formula for the

plumber's total labor charge?

y=30x + 75

y=105x

y=45x

y=75x+30