The temperature in sweden was -3 at 3pm after 6 hours the temperature dropped to -15 the temperature dropped the same amount each hour what was the change in temperature each hour

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

The ratio of the ages (in years) of three children is 2: 4: 5. the sum of their ages is 33. what is the age of each child?

In chemistry,n molecules of an ideal gas have pressure, volume, and tempersture that stand inthe following relation, where r is constant. solve the equation for n,the number of molecules. pv=nrt