The ratio of cups of orange juice concentrate to water in a punch recipe is 3 : 6. If Steve used 18 cups of water, how many cups of orange juice concentrate did he use?

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

What ia the sum if the first 7 terms of the geometric series