Can someone help me please

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 center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.