The mean of seven numbers is 21. five of the numbers are 18, 23, 21, 17, and 19. one of the remaining numbers is 3/4 of the other remaining number. find the two unknown numbers.

What is the missing constant term in the perfect square that starts with x^2 -20x

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

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.