What adds to -8 but multiples to -9?

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

Select all of the following expressions that are equal to 2.5.

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25