HELP ME PLEASE FOR 20 POINTs Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AB=3 and AD=1, what is the length of AC?

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?