Respuesta :

1) there are 60 minutes in an hour, and so she spends 180 minutes doing homework

180 + 30 + 35 = 180 + 65 = 245 minutes in all

2) 0.18 x 3663 = 659.34 x 4 = $2637.36

3) 2170/5 = 434

4) 100/2 = 50/2 = 25  Kevin has 25 dollars left  (50 on games, 25 on music)

5) 4800 x 0.53 = 2544 it would cost Cheryl $2544 dollars to mail all of them

she would need 44 more dollars

hope this helps
3 hours = 3 x 60 = 180 minutes
30 minutes practice piano
35 minutes on phone
total = 180 + 30 + 35 = 245 minutes
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$0.18 x 3663 = $659.34 each person
4 persons = 4 x $659.34 = $2637.36

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$2170 / $5 = 434 sweatshirts

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$100 - spent half at video game store = $100/2 =$50
he spent half of the half left at music store = $50/2 =$25
total spent at video and music stores = $50 + $ 25 = $75

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$0.53 x 4800 = $2544

cost $2544 to mail all