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Pencils cost $0.20 each. A. Write a function rule to calculate the total cost of any number of pencils. B. Use your rule to find the total cost of 12 pencils.
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Pencils cost $0.20 each.

A. Write a function rule to calculate the total cost of any number of pencils.

B. Use your rule to find the total cost of 12 pencils.

User John Allsup
by
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1 Answer

10 votes
A) f(x)=0.2x
B)f(12)=0.2(12)=2.4 dollars
User Shafik Yaghmour
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