The ratio of surfers to swimmers at a beach is 1 to 5. The ratio of female swimmers to the total number of swimmers is 4 to 15. If there are 60 female swimmers, how many surfers are there?

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.