Karen ran 12 kilometers. One mile is approximately equal to 1.6 kilometers. Which measurement is closest to the number of miles Karen ran?

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.