Dillon pays x dollars to get a haircut. He gives the stylist a 20% tip. The expression representing his total cost is x + 0.2x. Which expression is equivalent and why. A. 1.2x because adding 20% to the cost of the haircut is the same as multiplying the cost by 12.
B. X(0.2) because the cost of the haircut can be factored out
C. 1.02x because adding 20% to the cost of the haircut is the same as multiplying the cost by 1.02
D. 1.2x because adding $20 to the haircut is the same as multiplying the cost by 1.2.