Uhh help plz I think the answer is “C” but idk 4shore

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.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)