If x=6 is the only x-intercept of thr graph of a quadratic equation, which statement best describes the discriminant of the equation

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?