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The cost of a monthly cell phone plan, in dollars, is modeled by the function c(x)=0.6x+30 where x is the number of text messages.

a. $1.80 per text message

b. $0.60 per text message


c. $3.06 per text message


d. $6.00 per text message

1 Answer

3 votes
B is the answer hope this helps
User EdSF
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