I need a lot of help with many questions help

Answer:
2 cake donuts
Step-by-step explanation:
This is a question on probability, which means that we can find:
# of wanted outcomes/total outcomes.
Wanted outcomes: Vicky ate 3 cake donuts, so our value is 3.
Total outcomes: Vickey ate 3 + 4 + 8 = 15 donuts, so our value is 15.
Plug in: 3/15
Simplify: 1/5
So 1/5 of donuts Vicky eats will probably be cake donuts.
1/5 * 10 = 2