Question

At the beginning of a snowstorm, Harper had 11 inches of snow on her lawn. The snow then began to fall at a constant rate of 1 inch per hour. Assuming no snow was melting, how much snow would Harper have on her lawn 2 hours after the snow began to fall? How much snow would Harper have on her lawn after tt hours of snow falling?

Answer 1

13 inches of snow for the first one and I assume tt is supposed to be 11 so 22 should be the answer.