Hat is the sum of the angles? Explain how you would find the missing angle. Explain each step. (replace with 120 & x) help me this a test

Is the orthocenter of a triangle on the inside ?

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.