Hii can someone please help with 9 and 10 thank you! Brainlist answer! (No links)

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

What is 32+4 x (16 x 1/2) -2 show your work}

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?