Using order of operations how would you solve (3+4)-9 with an equation!!

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.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Opposite angles in a parrellelogram are