Answer:
4/5 cup or 0.8 of a cup
Step-by-step explanation:
For 5 gallons of punch = craberry juice required is 4 cups
For 1 gallon of punch = cranberry juice required is x cup
By cross multiplying;
x = (1 × 4) / 5
= 4/5
= 0.8
Answer is 4/5 cup or 0.8 of a cup