What’s the gcf of x^2 and 5x

Can some one explain this i got sent this. is this a threat i’m scared

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?