How do i make 7 x 2 + 5 =x a 2 step equation

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.

Which expression gives the area of the triangle shown below

In the geometric progression –3, 12, −48… what term is 3,072?