Determine whether each function is even, odd, or neither

What is the product of the radical expression. (7-2square root) (8+2 square root)

The product of two negative rational numbers is always zero sometimes zero never zero

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.