A cell phone plan includes 900 anytime minutes for $60 per month, plus a one-time activation fee of $30. Let x represent the number of months and y represent the cost in dollars. Answer parts (a) through (c). (a) Write an equation in the form y = mx + b for this situation. (b) Find and interpret the ordered pair associated with the equation for x = 8. (c) Over a two-year contract, how much will this plan cost? (a) The equation is y = (Type your answer in slope-intercept form. Use integers or decimals for any numbers in the expression.) (b) The ordered pair associated with the equation for x = 8 is (Type an ordered pair, using integers or decimals.) Which of the following is the correct interpretation of the ordered pair? O A. The cost of the plan for 510 months is $8.00. OB. The cost of the plan for 8 months is $30.00. O C. The cost of the plan for 8 months is $480.00. OD. The cost of the plan for 8 months is $510.00. (c) The cost of a 2-yr contract for the cell phone package is $ (Simplify your answer. Type an integer or a decimal.)