Change 725 percent to a mixed number

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

For the inequality |c| < |d| to be true, which of the following must be true?

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