Solve these equations fast.

(6 + 3i)(6 − 3i) =

(4 − 5i)(4 + 5i) =

(−3 + 8i)(−3 − 8i) =

Which of the following of the following sets of side lengths could not form a triangle?

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

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.