What is the greatest common factor of 14 and 21?

Use the multiplier method to incrases £258 by 43%

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?

Keith runs 5 miles in 38 minutes. at the same rate, how many miles would he run in 57 minutes