sarahg1 sarahg1 02-12-2016 Mathematics contestada Gianna has a monthly cell phone plan that she uses to talk and text. She pays $20 every month and also pays $.05 for every text message she sends. A) write an expression that can be used to represent the cost of her cell Phone plan. Be sure to write a LET sentence for your variable. B) Gianna sent 243 text messages last month. How much was her monthly cell phone bill? Show all work(: