Answer:34
Step-by-step explanation:
12+5=17.
17 times 2 equals 34
Do the opposite of what it asked. Work backward time get answer
Pineapple juice : orange juice : lime juice = 2:7:3
So there is 2x of pineapple juice, 7x of orange juice and 3x of lime juice.

She used 100 ml of pineapple juice.
4.56 rounded to the nearest whole number is 5