Find x with x and 120 in same side angle

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

Determine the standard form of the equation of the line that passes through (-2,0) and (8,-5)

What is the value of the discrimination for the quadratic equation 0=×2+2+×2