In these types of problems.....you wanna flip 4/10 to get its reciprocal, 10/4. After that, you will multiply 2 by 10/4. First, you multiply 2 times 10, which is 20, and then divide the answer by 4, which is 5. Hope this helped! :)
All triangles add up to 180 degrees so if the right angle is 90 degrees then you have 90 degrees left. Next, you take the 2x and x-6 and plug them into the equation 3x-6=90. Once you solve that you get x=32.
