Pls help me those questions are based on the equation that I put on the other picture the question that I need help on are 4 5 6 and 7

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

If i have 20$ and i gave 5$ away how much i got

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55