Pint:
16 oz size for $3.98 - $1.00 coupon
total value: $2.98
Quart:
We have 32 oz for $5.98, but to compare the value we need 16 oz so divide both side (quantity and price by 2)
16 oz for $2.99 - $0.50 coupon
total value (16) : $2.49
total value (32): 2.49 + 2.49 = $4.98
Answer: Quart is better to buy