How to solve and simplify 2/3 x 5/6 x 14

Find the solution(s) to x^2-14+49=0

Ken earned $128 from his part-time job this summer. he spent 25% of his money on games. he is going to donate 1/6 of the remaining money to charity. how much money will the charity receive?

Place the indicated product in the proper location on the grid. -4x3y2(7xy4)