Robyn bakes 4 pies because if she has 8 total cups of flour and each pie needs 2 cups of flour then all you need to do its divide. Hope this made sense and helped.
There are 18 nickels and 36 total coins 18:36 is your original proportion, but we can simplify. Divide by 2 9:18 Divide by 9. 1:2 is your final answer. A.) is correct.
