Posted by **kennedy** on Tuesday, September 15, 2009 at 6:34pm.

The cost of a fill on acrylic nails is a function of how many broken nails. MArtha is charged $34 for 5 broken nails, while Grace is charged $26 for 1 broken nail.

a)express the total cost as a fucntion of the number of broken nails.

b)What is the slpe of this fucntion and what does it represent?

c)Another salon charges $6 per nail for a fill regardlesss of the number broken nails. How many nails would have to be broken to make it more economical to go to Martha and Garce's salon?

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