What type of correlation is shown by the following sentence?

The temperature outside
and the number of coats purchased at a local
department store.

A) positive correlation
B) negative correlation
C) no correlation

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