The scale of a map says that 3 cm represents 8 km. What distance on the map (in cm) represents an actual distance of 20 kilometers? What is the actual number of kilometers that is represented by 12 centimeters on the map?

How can we find the measure of an exterior angle if we know the measurement of an interior angle

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

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2