There are 15 female students in Ms. Stell's World History Class. The ratio of females to males is 5:4. How many males are in her class?

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.

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?