How do you solve the cubic square root of 80

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Which expression is rational? 6. , square root two, square root 14, square root 49

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74