Question

Alex earned $ 20.40 in three hours what is the unit rate in dollars per hour

Answer 1

See below.

Explanation:

Divide the amount of money by the time.

20.4/3=6.8

So, alex earned $6.80 per hour.

-hope it helps

Answer 2

Divide total made by total hours:

20.40 / 3 = $6.80 per hour