Atree grows three feet per year. what happens to the growth of the tree when the number of years changes?
a: when the number of years increases, the number of feet decreases.
b: when the number of years decreases, the number of feet stays the same.
c: when the number of years increases, the number of feet increases.
d: when the number of years decreases, the number of feet increases.

You know that per year, the tree grows 3 feet. If the number of years increases, there should not be a decrease in the feet the tree grows. If the number of years increases, there should not be a constant value in the feet the tree grows. As the years decrease, the tree should not grow more feet in lesser time. However, when the number of years increases, the number of feet the tree grows should increase with the years. This means that the answer is C

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