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sophie18
Tom buys a new phone service. It costs $20 to install, and then costs $15 a month. Write an equation to show the cost of the phone (y) for any number of months (x). A. y=15x+20 B. y=20x+15 C. y=20x-15 D. 15x+20y=35
$20 for install, $15 every month
x = num of months, then cost = 20 + 15x