A retailer purchased a set of four plates at a cost of $45.00 and plans to sell them for $75.00. What is the percent of markup based on cost?

 c just did it

Step-by-step explanation:

67%

Step-by-step explanation:

($75 - $45) / 45x100

= 66.6666

= 67 rounded.

i believe the answer is c.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)