The amount of money that Sarah earns varies directly with the number of hours worked. If Sarah earns $320 for working 40 hours, determine the constant of proportionality.(1 point) Responses

To determine the constant of proportionality, divide the amount of money earned by the number of hours worked.

Constant of proportionality = Amount of money earned / Number of hours worked

In this case, the amount of money earned is $320 and the number of hours worked is 40.

Constant of proportionality = 320 / 40 = 8

Therefore, the constant of proportionality is 8.