While shopping for a big party Nick has $90 worth of item) in his grocery cart. Soda is $2 a bottle. Nick can spend $112 on everything. How many bottles of soda can Nick buy?

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint