John wanted to know about the popularity of a particular movie. he surveyed 20% of the people in 5 different theaters.
biased, voluntary response sample

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

How do you solve a question like this?

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?