The relationship between the number of months and cumulative cell phone cost is represented by the scatter plot shown. Cumulative Cost 600 500 400 Cumulative Cell Phone Cost (dollars) (10, 504) (9, 470) (8, 418) • (7, 361) (6, 324) .(5, 253) (3, 162) •[4, 196) 300+ 200 100+(1,55) (2, 108) 8 9 10 4 5 6 Number of Months A line of best fit for this data is C = 51m +4.4, where is the cumulative cell phone cost and m is the number of months. Using this data, which value is the best prediction of the cumulative cell phone cost after 18 months? A. $918 B. $923 C. $940 D. $990 SRESET Athalia Joellle Murphy, ID#***95 Growth: Math 6+ SC 2015 Question # 38