10. Mike is a veterinarian. He is placing a nine-line job ad for an assistant. The following piecewise function gives the price of an x-line ad.
45
when x < 3
a(x) =
45 + 9(x – 3) when x > 3
a. Find the difference between the cost of a two-line ad and the cost of a
3-line ad.
b. Find the cost of a 10-line ad.
c. Find the cost of an 11-line ad.
d. Can you find the difference between the cost of a 15-line ad and a 17-line
ad, without finding out the cost of each ad first? Explain.

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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the answer is two. hope this !