Find the answer to the slope of the curve m f(x)=x^2

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.