Suppose a railroad rail is 5 kilometers and it expands on a hot day by 14 centimeters in length. approximately how many meters would the center of the rail rise above the ground?

How many different ways can you make change for $.50 using only nickels, dimes, and quarters?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%