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Andy used to earn $20 an hour to teach piano lessons. He raised his price to $24 per hour. What is the percent increase in his hourly fee?

Respuesta :

thisspecial123

Answer:

A 20% increase

Step-by-step explanation:

Andy used to charge $20, now he charged $24. $24, (The new price) / $20, (The old price) = 1.2, now multiply 1.2 * 100 = 120%. Then, 120% from the 100% initial value leaves you with a 20% increase.

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