In a croyon box there is 5 dark colors for every 8 light colors. if thare are 20 dark colors how many lights

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.