Xy/x+y=1
yz/y+z=2
xz/x+z=3

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?