please help me please will give brainliest to anyone who is good
show your work

Answer:
A
Step-by-step explanation:
2 and 1/2 is can be written as 5/2
5/2 cups of soda for every 2/5 cup of pineapple juice
Unit rate means per 1 of something, in this case pineapple juice
5/2 per 2/5 or (5/2) / (2/5)
5/2 ÷ 2/5 = 25/4 or 6 and 1/4