Does this system of equations have one solution, no solutions, or an infinite number of solutions?

2x + y = 5

2y + 4x = 10

Carlos is 33 years younger than Kristen. 2 years ago, Kristen's age was 2 times Carlos's age. How old is Carlos now?

a cable 48 meters long is cut into two pieces so that one piece is 18 neters longer than the other. Find the lenght of each piece of cable

Your friend has y dollars. You have half as much money as he does. Which expression represents the amount of money you have?

What pattern do you see when raising a power to a power

Peter drove 300 miles in 5 hours. Jane drove 400 miles in 8 hours. Who drove at a higher speed? A. Jane B. Peter

A dump truck is careying 4250 pounds of gravel. There are 2000 pounds in a ton. Express the weight of the gravel in tons only by using a mixed number. If necessary, simplify the fraction part of the mixed number.

A marketing research company desires to know the mean consumption of milk per week among males over age 25. They believe that the milk consumption has a mean of 2.5 liters, and want to construct a 85% confidence interval with a maximum error of 0.

Four friends go mout to dinner and decides to split the bill evenly. each friend orders a soda for 2.00, an entree for 12.99 and they all four share a dessert for 7.99 how much is the total bill

I need to know what is 5: 1 -- 4

April can buy a package of 10 folders for $1.20 or a package of 8 folders for $1.12. What is the unit price, per folder, in each package?