In March 2014, a gas company had the rate schedule shown to the right for natural gas usage in single-family residences. Monthly service charge $18.6 (a) What is the charge for using 30 therms in a month? Delivery charge First 40 therms $0.88474/therm (b) What is the charge for using 200 therms in a month? $0 (c) Develop a function that models the monthly charge C for x therms of gas. Over 40 therms (d) Graph the function found in part (c). Natural gas cost First 40 therms $0.3183/therm Over 40 therms $0.5344/therm . . . . . (a) The charge for using 30 therms in a month is $ 54.69 (Simplify your answer. Round to the nearest cent.) (b) The charge for using 200 therms in a month is $. (Simplify your answer. Round to the nearest cent.) Help Me Solve This View