One person runs 1.5 miles per hour faster than a second person. the first person runs 4 miles in the same time the second person runs 3 miles. find the speed of each person.

Which ratio is equivalent to 10: 85

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?