Answer:
The number of cups of raisins will she need for four people is:

Explanation:
It is given that:
Carrie couldn't find a recipe that would make four servings. She decided to use a recipe for eight servings and use only half as much of each ingredient.
i.e. she is using half actual amount which is given for the 8 servings.
Now, it is given that:
The recipe for eight called for one and a fourth cups of raisins.
i.e. the cup of raisins used for eight servings is:

i.e.

Hence, the number of cups of raisins she used for 4 people is:
