What is the steps of 4539 divided by 51

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

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

Is the orthocenter of a triangle on the inside ?