Determine the median of the data. 2, 3, 3, 4, 5, 7, 9
A.3
B.4
C.4.7
D.5

Which of these choices show a pair of equivalent expressions?

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

The graph shown is the graph of which function?