20 points!~ And thanks if you help me.

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

Put the equation in slope intercept form by solving for y

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.