Agustin says that he can hold his breath for 90 seconds. And, he says that he did this 5 times this week. He used fractions and multiplication to calculate how many minutes he held his breath this week.

I Think It Might be 450 mins not sure what the fraction is

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By multiplying 90 seconds to the 5 times he held his breath, you get 450 seconds. then to convert that to minutes, divide by 60 ... you get 7.5. which is 7 minutes and 30 seconds

Agustin held his breath for 7 minutes and 30 seconds this week