Angle 6 is only equal to angle 2 if the lines are parallel. The horizontal line is being intersected by two lines, if they are parallel then <6 = <2. They are equal because the horizontal line is straight, meaning anything crossing it that are parallel wil creat equal angles
107-5=102 subt. 5 minutes since there is just one of it. 102/6=17 divide by 6 to find how many skits are in the remaining minutes. so there will be 17 skits.
