Bill bought a new cellular phone. his monthly bill will be $34.99 each month which includes 100 minutes of use. additional minutes will cost $0.23 per minute. write an equation that represents the cost of the bill c in terms of m, which is the number of minutes used above the 100 that are included in the base price. a. c = 34.99(m - 100) + 0.23 c. c = 0.23m b. c = 0.23m + 34.99 d. c = 0.23(m - 100) + 34.99