Mathematics, 26.10.2020 18:50 kitten9389

Deirdre's babysitting service charges $20 plus $10 per hour. Janine's babysitting service costs $30 dollars plus $5 per hour. How many hours will it take for
Janine's service to be cheaper?

Please help

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Deirdre's babysitting service charges $20 plus $10 per hour. Janine's babysitting service costs $30...