A cell phone plan includes 450 anytime minutes for ​$35 per​ month, plus ​$18.85 for a cell phone and ​$25 for a​ one-time activation fee. let x represent the number of months of service. write an equation in the form y equals mx plus
b. find the ordered pair associated with the equation for xequals9. if you sign a​ 1-yr contract, how much will this cell phone package​ cost?