Respuesta :

biffyboffboof

Answer:

A week is 7 days so if she spends 3 hours a day that 21 hours during a whole week. Since we are trying to find 4 weeks we multiply by 4

21*4=84

Hope This Helps!!!

raymondjiang

Answer:

84 hours

Step-by-step explanation:

If he spends 3 hours studying every day for 4 weeks, then we would multiply 3 by the number of days in 4 weeks. There are 7 days in a week so there are 28 days in 4 weeks. 3*28 = 84.

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