The base of a rectangle is 10cm. It has a perimeter of 32cm. A triangle also has a base of 10cm.
The area of the rectangle is equal to the area of the triangle.
Work out the height of the triangle.

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?