Please answer it in two minutes

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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?

What is fraction that is equivalent to 3/8