Answer:
Step-by-step explanation:
Coupon A
Unit price of fresh buns = 
= 
Unit Price = $0.27 per bun
Coupon B
Units price of fresh buns = 
Unit Price = $0.25 per bun
Coupon with the better buy is Coupon B.
Coupon C
Unit price of hamburger meat = 
= 
= $0.34 per hamburger
Coupon D
Unit price = 
= $0.40 per hamburger
Coupon with better buy is Coupon C.