A radioactive material loses 25% of its mass in 10 minutes. find its half-life.

What's the solution? x+2y=-2 2x-4y=0

Find two consecutive integers whose sum is 100

The movie theater has 250 seats. 225 seats were sold for the current showing. what percent of seats are empty

The sum of two numbers is 8, and their difference is 22

Calvin read an 18 page chapter in his social studies book in 2 hours if he read the same number of pages each hour how many pages did he read per hour

Which statement belongs in the intersection of the Venn Diagram? A venn diagram is shown with one circle labeled perimeter and the other labeled area.

Does the equatoin 2x+6y=35 have any whole number solutions? Why or why not?

Greg went to the walmart to buy pencils and pens. each pencils costs $2 and each pen costs $3. he bought five items. he spent $12. how many pens and pencils did he buy?

a restaurant owner bought 6 boxes of disposable cups for $81 with each box containing 3741 cups if he wanted to divvy up the Cups among his 3 restaurants with with each restaurant getting the same number of cups how many cups of each do I get

A one month supply of multi-vitamins is $28. A two month supply is $49. How much money can a customer save by going with a two month supply?