Can someone please help me with this

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap