the volunteers can clean the clogged river for 2 1/2 hour for each day. how many hours will they work if they clean the rivers in 5 1/4 days?
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Step-by-step explanation:
since the volunteers works 2 1/2 hours a day, you'll have to multiply it by 5 1/4
2 1/2 x 5 1/4
= 5/2 x 21/4
= 105/8
= 13 1/8 hours >33