The average human breathes approximately 12 times per minute. it would take approximately how many minutes to breathe one billion times

83,333,333.3 minutes

Step-by-step explanation:

The average human breaths per minute approximately = 12 times

We have to calculate the time of breathing one billion times.

So we will divide one billion by 12.

Time taken to breath one billion times =  

                                                                = 83,333,333.3 minutes

It will take 83,333,333.3 minutes to breath one billion times.

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.