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?
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