Sam wrote these four expressions. sam believes that some of these expressions are equivalent. which expressions are the ones that are equivalent? explain how you know.

1 . n + n + n + n + 2

2 . n + n + n + 2

3 . 4n + 2

4 . 2n + 2n + 2n

Which statement describes surface features called maria on the moon

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

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?