The answer is -1
Byee.........?..
I'm not real sure if this is right but I did my best
First you should find the discount so you can say:
10/100 = ?/82
so ? is your discount and ? is equal to:
? = 82*10/100 = 8.2
so your discount is $8.2 and your sale price will be:
$82 - $8.2 = $73.8 :)))
I hope this is helpful
have a nice day
obtuse because it all adds up to 180 degrees