Find the difference: 7 7/8 - 3 1/4

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

In which form is the following function written? y = - 2(x – 3)(x + 5)