The price of the washer and the dryer set is $720.
The commission earned by Alice is $36.
Percentage can be described as a fraction an amount expressed as a number out of hundred. Percentage is a measure of frequency.
Price after the mark up = ( + percentage mark up) x cost price
(1 + 0.20) x $600 = $720
Commission earned by Alice = 5% x 720 = $36
To learn more about percentages, please check: https://brainly.com/question/25764815
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