Keyshawn drives 300 miles in twice the time it takes Shelby to drive 240 miles. Shelby's speed is 30 mph greater Keyshawn's speed. what are the speed and time of each ?

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13

What is the scale factor of axyz to auvw?

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to do these things by hand?