What is the solution of the proportion 3/16=9/y

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

What is the upper quartile in the box plot?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,