1.Given the piecewise defined function:

f(x)=-2x-3if x2

f(x)=x+4 if x>-2

State the Domain and Range in interval notation.

2.An on-line graphic novel and comic book retailer charges shipping costs according to the following formula

S(n)=0.5n+2.5 if 1n14

S(n)=0 ifn15

Find

S(1)=

S(4)=

S(16)

3.A museum charges $3 per person for a guided tour with a group of 1 to 8 people or a fixed $27 fee for a group of 9 or more people. Write a function relating the number of people,n, to the cost, C.

C(n)= if 0

C(n)= if n

4.A cell phone company uses the function below to determine the cost, C, in dollars for g gigabytes of data transfer.

C(g)=10 if 0

and C(g)=5g+5 ifg1

Calculate the cost for 0.5 and 5 gigabytes of data transfer:

C(0.5)=

C(5)=