The Johnson twins were born five years after they're older sister. this year the product of the three siblings ages is exactly 3677 more than the sum of their ages how old are the twins

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