Ann and joes farther donated $3 for every lap they swam in a swim-a-thon. ann swam 21 laps, and joe swam 15 laps. use the. distributive property to find the amount of money their farther donated.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.