X-y=1

X+y=3 Elimination

The volume of Saturn is 8.27 * 10^14. This is about 766 times the volume of Earth. What is the approximate volume of Earth? Show your work.

One eighth of Tonys book are mystery books. He has 3 mystery books. How many books does Tony have in all?

Find the greatest two consecutive odd intergers whose sum is less than 85

Introduction to addition of fractions with different denominator 3/5+1/3

A hot air balloon is launched at Kirby park, and it ascends at the rate of 7,200 feet per hour. At the same time, a second hot air balloon is launched at Newman park, and it ascends at a rate of 4,000 feet per hour.

Write three equivalent ratios for 5/7

Suppose that you need to create a list of n values that have a specific known mean. Some of the n values can be freely selected. How many of the n values can be freely assigned before the remaining values are determined

The number of pages in the U. S. tax code exceeds the number of pages in the King James Bible by 18,528. The combined number of pages in the tax code and the Bible is 21,472. How many pages are in the U. S. tax code?

What is the geometric mean of 275 and 11?

Subtract: 3 3/5 - 1 1/1 1 1/10 2 1/10 2 1/5 2 2/3