Donaldsons pay $15/hour = 15*7 = $<<15*7=105>>105.

The Mercks pay $18/hour = 18*6 = $<<18*6=108>>108.

The Hilles pay $20/hour = 20*3 = <<20*3=60>>60.

The total amount Layla earned is 105 + 108 + 60 = <<105+108+60=273>>273.

Layla earned $273 for babysitting.

# Answer

273
Question:
The Donaldsons pay $15 per hour for babysitting. The Merck family pays $18 per hour and the Hille family pays $20 per hour for babysitting. Layla babysat for the Donaldsons for 7 hours, the Merck family for 6 hours and the Hille family for 3 hours. How many dollars did Layla earn babysitting?
Answer:
Let's think step by step.

user
273
The Donaldsons pay $15 per hour for babysitting. The Merck family pays $18 per hour and the Hille family pays $20 per hour for babysitting. Layla babysat for the Donaldsons for 7 hours, the Merck family for 6 hours and the Hille family for 3 hours. How many dollars did Layla earn babysitting?
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