What is Lender or Creditor in Business Math?

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

Anew movie is released each year for 14 years to go along with a popular book series. each movie is 2 minutes longer than the last to go along with a plot twist. the first movie is 70 minutes long. use an arithmetic series formula to determine the total length of all 14 movies

In the figure, triangle aob and triangle boc form a linear pair ,find the measure of x