Which point is an x-intercept pf the quadratic function f(x) = (x + 6)(x - 30?

On a architect's drawing of a house, 1 inche representa 1.5

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers