Please help ! question below.

Answer this question only if you know the answer! 30 points and

How many zeros does the function f(x)=4x3-x2+1 have

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points