6-300 The cost of enrollment at a community college is $120 plus $75 per credit, c, taken. Express the college costs as a function of c and find the cost when 12 credits are taken.
6-300A 1 - 100 What is f(c)=120+75c and f(12)=$1020
6-400 The number of times a cricket chirps per minute can be predicted using the formula where n is the number of chirps per minute and F is the Fahrenheit temperature. The Celsius scale for temperature can be converted to Fahrenheit using Find the number of cricket chirps per minute as a function of Celsius temperature.
6-500 Hardwood flooring costs $4.75 per square foot for amounts up to and including 500 square feet and $4.50 for amounts of more than 500 square feet. Write a piecewise function that describes the cost, c, of x square feet of hardwood flooring.