Answer:
It was a 25% discount
Step-by-step explanation:
25 percent of 20 is 5. You subtract 5 from 20 and get 15.
I hope this helps.
You cannot solve this
you need at least one value given like x=something or y=something so you can plug it in
if you meant solve for x, then x= -4y+32
duh yes it is
noob at math u rlolll