Which of the folloing is the sine of angle a in the right triangle

Answer this question only if you know the 30 points and

How can i differentiate this equation?

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?