Oh pleaseee please help me

you can rotate question

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Someone me! if you’re smart you can solve this!

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price