Ascuba diver descends to a depth of 30 meters below sea level and then rises 23 meters to study a school of fish. how far below the surface is the school of fish?

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.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi