What number would be the most accurate approximation for the square root of 78

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

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?

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points