Leanne deposited $1500 into a saving account for which simple interest is calculated quarterly. If her $1500 grew to $1509 after 3 months, what is the yearly interest rate on Leanne's account?

You can find the constant of proportionality by finding the ratio of

Ineed with number 6 , explain how to get 1978

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