A commuter plane leaves an airport and travels due south at 412 mph. Another plane leaves at the same time and travels due east at 309 mph. Find the distance between the two planes after 2 h.

At the many chips cookie company they are serious about the number of chocolate chips in their cookies they claim that each cookie hasn't c chips. if their claim is true there will be 200 chips in 10 cookies

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

Simplify using positive exponents only.