Anumber cube has 1 face numbered 1, 2 faces numbered 2 and 3 faces numbered 3. the cube is tossed 100 times. what is the experimental probability of the cube showing 1

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