Help me fast please u will get reward

Really need on these. i have no idea what to do

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.

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7