My friend asked me this question....please help if possible:

Sally bought some chicken wings and fishballs for a party. The cost of the chicken wings is 4/5 of the money she spent. The cost of each chicken wing to the cost of each fishball is in the ratio of 5:2. Find the ratio of the number of chicken wings to the number of fishballs Sally bought for the party.

PS my friend and I arent 13 yet I'm sorry if its too easy

Anna