Which table represents a linear function?

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

Use the graph of the sine function y=2sinθ shown below

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on