Answer:
97.2g of sugar
Explanation:
1. Find the ratio of grams of sugar needed for one cake
64.8g sugar / 8 cakes = 8.1g / 1 cake
8.1 grams of sugar PER cake
2. Multiply this ratio by the 12 cakes
8.1 g sugar x 12 cakes = 97.2g sugar
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1 cake 1 1
FINAL ANSWER: 97.2 grams of sugar are needed for 12 cakes.
*You don't have to write it out in fraction form, I just did so that it can possibly help you better understand the ratio. Btw, the unit of "cakes" also cancels itself out which is why it wasn't in the final answer's fraction.