You have to add all the angles inside together. So you do 33+22+90 = 145 Then you do 180-145 which is 35 degrees. Now you know the angle inside of x is 35. We need to find x. Because a straight line is 180 degrees, you need to do 180-35 which is 145 degrees. So x = 145
i dont know how your teacher teaches it but in the first question take away the y after the 25. number 2 the start equation would be 55=2x+25 then you would subtract 25 from each side to get 30=2x, the divide by to to get x=15 or she made 15 calls. number 3 is correct.
