Okay, so these aren't that hard, I just don't trust myself to get the right answers, because my grade depends on these 2 questions...'
Thank you in advance!

3. You are buying two bags of potato chips at the grocery store. You have a manufacturer’s coupon for $0.50 off and the store is offering 50% off if you buy two bags. The discounts are stackable. How do you compute your final cost?
A-Subtract $0.50 off of each bag and then divide by 2.
B-Divide each bag by 2, subtract $0.50 off of each bag, and then add them together.
C-Add the two bags together, divide by 2, and then subtract $0.50
D-Subtract $0.50 from the first bag, add them together, and then divide by 2.

4. You are buying two bags of potato chips at the grocery store. You have a manufacturer’s coupon for $0.50 off and the store is offering 50% off if you buy two bags. One bag of potato chips costs $2.00. The discounts are stackable. What is your final cost?