What decimal can be added to 0.0545454 to get 0.1545454

What is the base of 1/9 to the power of 2

Ineed no it anyone can see this

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.