Jon buys packagesof pens for $5 each. identify the dependent and independent variables in the situation?

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2