Factor the common factor out of each expression. PLEASE HELP! WILL GIVE BRAINLIEST

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

Solve 2x+y=3 x+y=5 in substitution method

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?