A ride share company charges $5 for a ride less than 10 minutes, $15 dollars for between 10 and 20 minutes inclusive and $20 for more than 20 minutes but less than or equal to 30 minutes. The service also includes a flat fee of $15. Let C(t) be the cost of a ride lasting t minutes. a) What is the domain of C(t)? [2 A] b) What is the range of C(t)? [2 A] c) Write a formula for C(t). [3 A] d) Draw a graph of C(t). [3 A]