Which is not a zero for f(x)= x^3+3x^2-x-3

1
-1
3
Or -3

This is so hard and it’s for a test

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how