An elevator is on the 15th floor. it goes down eight floors. What floor is the elevator on now?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?