Lydia bought a shirt at 20% off of retail price of 40$ She paid 5% tax on the price after discount how much does Olivia pay for the shirt

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

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

What is x and y intercepts for y=x+7