4 letters are typed, with repetition allowed. What is the probability that all 4 will be vowels? Write your answer as a percent. Round to the nearest hundredth of a percent as needed.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?