What is 56.57 rounded to the nearest whole number

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

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

Find the distance between (7,-6) and (-3,-9)