In one popular game, five number cubes are rolled at the same time. if the number cubes are kept separate, what is the total possible number of outcomes

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of