I need help please and can you also explain how you got the answer I will give the crown, no trolls, no links please

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

Which is the graph of the function y=2(4)^x

If chord ab is congruent to chord cd, then what must be true about ef and eg?