Write an inequality for all numbers such that twice the sum of the number and eight is at most four

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

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Which of the following can be used to explain a statement in a geometric proof?