Maria purchased a new jacket for 78.12. the orginal price of the jacket was discounted 20% and maria had to pay 5% sales tax. what was the original price of the jacket?

20 percent of the discount minus 5 percent sales tax equals to 15 percent.
know calculate the 15 percentage out of 78,12 so x on 78,12 equals to 20 on 100 so 78,12 equals to 100 percent and x equals to 15 percent so 78,12 times 15 divided by 100 is 15 percent or the number you found discount and and sales tax combined know you substact 15 percent out of your original price.

He will need 2,898 pieces of paper