Write the ratio 21 inches to 9 free as a fraction in simplest form

The table shows the age and finish time of ten runners in a half marathon. identify the outlier in this data set. drag into the table the ordered pair of the outlier and a reason why that point is an outlier.

Write the factored form of this trinomial 9x^2+18x-7

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.