Write the ratio 15:4.5 in its simplest form​

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

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers