Please answer this question.

225/100 of last years cost. write each fraction as a decimal and as a percent

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

Do,h = (7, 9) (14, 18) the scale factor is