Why are scientific models important?
a. they prove scientific theories.
b. they visualize thing that are very complex. very large. and very small
c. they make it harder to understand things.
d. they never change.

Acar traveling at 65 mph leaves 25 foot skid mark what is the ratio of the speed to length of skid mark (feet) in the simplest form

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 25% of y is 30, what is 60% of y?