Arectangle has width w and its length is 3 units shorter than 5 times the width, or 5w - 3. write a polynomial for the area of the rectangle.

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?

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

What is the result of adding the system of equations? 2x+y=4 3x-y=6