A retailer buys a coat in bulk at a unit price of $45. The coat is marked up to 28% to sell in the store. What is the price of the coat in the store?

57.60$

Step-by-step explanation:

45*.28=12.60

12.60 + 45= 57.60

the one on the bottom left

step-by-step explanation:

all of the other ones have a specific pattern

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50