Mo Question 7, 3.4.53 HW Score: 76.67%, 23 of 30 points Functions Part 1 of 4 & Points: 0 of 3 Monthly service charge $19.55 In March 2014, a gas company had the rate schedule shown to the right for natural gas usage in single-family residences Delivery charge (a) What is the charge for using 30 therms in a month? First 40 therms $0.95373/therm (b) What is the charge for using 200 therms in a month? Over 40 therms (c) Develop a function that models the monthly charge C for x therms of gas. Natural gas cost (d) Graph the function found in part (c) First 40 therms $0 3046/therm Over 40 therms $0 5707/therm