The distance between (-1,2) and (-2,1)

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74