Need help with this problem

The product of two negative rational numbers is always zero sometimes zero never zero

5.(04.07) two different plants grow each year at different rates, which are represented by the functions f(x) = 4* and g(x) = 5x + 2. what is the first year the f(x) height is greater than the g(x) height? year 3 year 0 year 2 year 1

Need same math paper but the back now i hope your able to read it cleary i need with hw