A user is charged P250.00 monthly for a particular mobile plan, which includes 200 free text messages. Messages in excess of 200 are charged P1.OO each. Represent the monthly cust for text messaging using the function t(m). where m is the number of messages sent in a month A certain chocolate bar costs $50.00 per piece. However, if you buy more than $ pieces they will mark down the price to P48.00 per piece. L'se a piecewise function to represent the cost in terms of the number of chocolate bars bought