You need to buy laundry detergent and your favorite brand comes in three different sizes. size 1 costs $7 and is enough for 28 loads, size 2 costs $14.72 and is enough for 64 loads, and size 3 costs $24 and is enough for 100 loads. whats the best deal?

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site