Answer:
36 pieces of cheese in 12 minutes
Step-by-step explanation:
So we will divide the amount of cheese over the amount of time to get the amount of cheese eaten in one minute.
30/10 = 3
So the mouse eats 3 pieces of cheese each minute. So if the mouse ate 30 pieces of cheese in 10 minutes it will eat 36 pieces of cheese in 12 minutes