Answer:
C, E, D
Explanation:
A "unit rate" is a rate that has 1 unit in the denominator. Here, the rates are all given in terms of the number of apples in 1 basket. (The 1 basket is the 1 unit.)
Application
When rates are given with some number of units other than 1 in the denominator, divide the numerator by the denominator to find the unit rate.
Here, the unit rates are all more than one apple in each basket, so the number of apples must be a multiple of the number of baskets. Phrases "A" and "B" both have more baskets than apples, so will not be used.
C: (304 apples)/(8 baskets) = (304/8) apples/basket = 38 apples/basket
D: (294 apples)/(7 baskets) = (294/7) apples/basket = 42 apples/basket
E: (405 apples)/(9 baskets) = (405/9) apples/basket = 45 apples/basket
Matching
(38 apples)/(1 basket) = C: 38 apples/basket
(45 apples)/(1 basket) = E: 45 apples/basket
(42 apples)/(1 basket) = D: 42 apples/basket