While making some nachos in the kitchen you realize your 100% hotsauce is too hot for you. To water it down you take some hotsauce that is only at 50%. If you want
200ml of hotsauce at 85% then how much of each mixture do you need?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.