HELP!!

Suppose 18%

of students chose to study Spanish their junior year, and that meant that there were 171 such students. How many students chose not to take Spanish their junior year?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Consider the triangle. which shows the order of the angles from smallest to largest? angle a, angle b, angle c angle b, angle a, angle c angle b, angle c, angle a angle c, angle a, angle b

Which is the focus of a parabola with equation y2=4x