The bus fare in a city is $2. People who use the bus have the option of purchasing a monthly discount pass for $30. With the discount pass, the fare is reduced to $0.50. Using this information, complete parts a through c below a. Express the total monthly cost to use the bus without a discount pass, f, as a function of the number of times in a month the bus is used, x f (x ) = (Simplify your answer, Use integers or decimals for any numbers in the expression.) b. Express the total monthly cost to use the bus with a discount pass, g, as a function of the number of times in a month the bus is used x g(xx) = (Simplify your answer. Use integers or decimals for any numbers in the expression.) c. Determine the number of times in a month that the bus must be used in order for the total monthly cost without the pass to equal the total monthly cost with the discount pass. What will be the total monthly cost for each option? The bus must be used times in a month. The total monthly cost for each option will be $ (Simplify your answer. Type integers or decimals.)