Respuesta :

Answer:13 hours

Step-by-step explanation:

If she works babysitting for theee hours she will make 30 290-30=260/20 =13 hours

Answer:

She will have to work 13 hours lifegaurding.

Step-by-step explanation:

10 x 3 = $30

290 - 30 = $260

260/20 = 13

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