Question

A plumber charges a call-out fee of $90 as well as $2 per minute while working. Suppose the plumber works for t hours. Which equation expresses the amount the plumber charges ( $C ) as a function of time (t hours)?

Answer 1

Answer: $C= 90+120t OR $C=90+(2 times 60)t

Explanation:

Answer 2

A plumber charges a call-out fee of $90 as well as $2 per minute while working. Suppose the plumber works for hours.

Which equation expresses the amount the plumber charges ($C) as a function of time (t hours)?

90 + 120t

Explanation: