Help pls i have 3 tests to do and this is due today

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.

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2