Which number is equivalent to the expression? 2x4^2+3(6/2)

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

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Can someone answer this question for me