Achemist has one solution that is 25% salt and 75% water and another solution that is only 5% salt. how many milliliters of each should the chemist use to make 1400 ml of a solution that is 10% salt.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Ineed to know the answer to this algebra question.

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?