The owner of an electronics store received a shipment of mp3 players at a cost of $64.25 each. if he sells the mp3 players for $99.99 each, what is the percent of markup? round to the nearest whole percent. a. 6% b. 36% c. 56% d. 62%

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