You need to remember your exponent rules. I don’t know any easier way to do it. These are all the ones I can remember right now
Answer:
first things first, you need to find out how much juice you have: 30 + 20 + 50 = 100, so 100 ml of juice. all together, the juice is 100%, or 1. separated, the amounts are 30%, 20%, and 50%, therefore the amount of coconut milk in the cocktail you have is 50%, or 1/2.
Look at the link below I filled in the answers for you. :)
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Simply use your calculator
3.727272....