I’m on Acellus and I have to combine like terms. I already got 12x but I can’t seem to get the next number. Can anyone help?

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

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer