Mathematics, 29.09.2019 14:30 jazminefeblez
He cost, c, of a health club membership is related linearly to its length in months, m. if a 12-month membership costs $260 and an 18-month membership costs $380, which equation can be used to find the cost of a 30-month membership?
a) c - 380 = 1/20(30-18)
b) c - 18 = 20(380-30)
c) c - 380 = 20(30-18)
d) c - 18 = 20(30-12)
Answers: 1
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