Answer:
20% off
Step-by-step explanation:
If you want to quickly figure this out, simply take the 20%, turn it into a decimal (20.) and move it the two spaces over (.20). Next, multiply the .20 by the $80, (.20 x 80 = 16) The 16 in this equation represents the amount of dollars you will be saving. To check your work, simply add 16 to 64, for a total of 80!
Hope this helps!