A classroom has 4 bookcases that weigh 174 pounds altogether. If they all weigh the same amount, how much does each bookcase weigh?

How do you solving the solution of each system using elimination?

Write the rational number in lowest terms 99/-15

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?