Answer:
Step 3
Explanation:
mark up
1.60 * .60 = .96
the mark up is .96
new price
1.60 + .96 = 2.56
mark down
2.56 * .2 = .51
decrease the price by .51
2.56 - .51 = 2.05
the new price is 2.05
buying 3 boxes
3* 2.05 = 6.15 ******* 3 boxes cost 6.15 not 8.20
sales tax
6.15 * .08 = .49
add the tax
6.15+.49 = 6.64
The cost is 6.64