Question

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The equation below shows the relationship between n, the number of minutes of calling time and, c, the charges in dollars for a cell phone plan.







Which table shows the relationship between n and c?


A.

n c
70 31
80 32
90 33

B.

n c
70 33
80 32
90 31

C.

n c
70 724
80 824
90 924

D.

n c
70 7
80 8
90 9