Each wheel on Harley's bike has a radius of 60 cm. How many revolutions does each bike make when Harley bikes 500 cm?
Josh's allowance is m cents per week. Represent the number of dollars he gets in a year.
The cost of mailing a package is c cents for the first b ounces and d cents for each additional ounce. Find the cost, in cents, for mailing a package weighing f ounces if f is more than b.