Only number 10 includes part a part b

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

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

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)