Plz help me I am timed!

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

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000