Two different plants that grow each year at different rates are represented by the functions f(x) and g(x). in what year does the height of the f(x) plant exceed that of the g(x) plant?

month (x) f(x) = 3x g(x) = 5x + 12
1 3 17
2 9 22

a.) month 3
b.) month 4
c.)month 5
d.)month 6