How would the numbers -10, 0, and 10 appear on a horizontal number line?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

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