What is the GCF of (14x2 – 7x)?

Geometry ? i don't know how to do any of these.

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

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