question in descrip

Question

You are planning to buy some colorful t-shirts from a catalog. The shirts cost $14 each plus $7 shipping if
you buy 4 or less and $11each plus $10 shipping if you buy more than 4.
a. Write a function to describe the cost of the shirts.
b. What is the cost if you buy 4 shirts?
c. What is the cost if you buy 5 shirts?
d. What is the cost if you buy 8 shirts?

Answer 1

let c(s) represent your cost function.

s = # shirts purchased.

 

c(s) = 14s + 7, s ≤ 4

c(s) = 11s + 10, s > 4

 

b.  c(4) = 14(4)+7 = $63

c.  c(5) = 11(5)+10 = 

d.  c(8) = 11(8)+10 =