Acomputer's fan rotates 2000 times in 40 seconds. find the unit rate in rotations per second.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

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?