Question

Savannah was paid $87 for 12 hours of babysitting and $65.25 for 9 hours. What is the constant of proportionality that describes this relationship?

Answer 1

12 hours worth $87

1 hour would be  $87/12 = $7.25


9 hours worth $65.25

1 hour would be  $65.25/9 = $7.25


The constant of proportionality is  $7.25 per hour.