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Rob and Mike are on a club swimming team.
They are training for a statewide swimming meet that will be held in the end of summer. The table shows how many hours Rob and Mike spent at practice each week

practice time (in hours). | Swimmer|weekly|Monday-Friday|
Rob. | 35. | 25 Mike. | 30. | 20 Question: write a possible expression to show how many hours Rob and Mike spend at swim practice over a period of 10 weekends . include parentheses and brackets in your expression.


Please help
and thank you



Answer :

Mike: 20+30/2= 25 on average 
25*10=250 hours. 

Rob: 35+25/2=30 on average 
30*10=300 hours. 

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