The cost of a telephone call is $0.75 + $0.25 times the number of minutes. write an algebraic expression that models the cost of a telephone call that last t minutes

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.

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0