PLS HELP ME- I HAVE TO TAKE A TEST AND IM SO CONFUSED ON 8 QUESTIONS-Directions :Use the given information to find the missing piece. You may use any method to solve the following problems, but please make sure to show all work. 1. Original price-- $80
Percent of discount—20%
Sale price-- ???

2.Original price-- $82
Percent of discount-- ???
Sale price-- $65.60

3. Original price-- ???
Percent of discount—5%
Sale price-- $57

4.A store pays $85 for a game system. They mark it up 125%. If 6% sales tax is applied on top of the new price, what is the final price of the aquarium?

5. Your friend used a $20 coupon to purchase a pair of sneakers that were advertised at $139.99. You buy the same shoes, but you use a 20% off coupon. Who paid a cheaper price?

6. A store buys an item for $10. To earn a profit of $25, what percent does the store need to markup the item?

7.You and 2 friends go out to dinner. The food bill comes to $35.20, and you are charged an additional 6% sales tax. You then want to leave an 18% tip just on the price of the food. If you split the final amount evenly, how much should each person pay?

8.You start the baseball season with 10 strikeouts. By the end of the season, you only have 4 strikeouts. What is the percent of change of the number of strikeouts? (don’t forget increase or decrease!)

PLS HELP MEEE THIS IS A 45 QUESTION TEST- IM SO CONFUSED ON THESE QUESTIONS- IM SO BAD AT THIS KIND OF MATH SUHYDSKLJ
SRRSLY PLEASE HELP MEEE I WILL MARK IM LOOSING POINT- PLS HELP