My daughter needs with step by step doing this equation

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

Me. i can't figure out this question. give an explanation too. .

The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?