How many times larger is 3x10^-5 than 6x10^-12? A. 3 x 10^5
B. 3 x 10^6
C. 5 x 10^5
D. 5 x 10^6

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