In 10 years, what percent will Benny's mom's age be of his age? If you write your answer in decimal form, round to the nearest hundredth.

In 10 years, Benny's mom's age will be % of Benny's age at that time.

In a quadratic function of the form ax^2+bx+c, which of the following is not true? a. the y-intercept is c. b. if a is positive, the parabola opens up. c. the vertex has an x-coordinate of -b/2a. d. the axis of symmetry is the line y=-b/2a.