Please this is due in 1 hr and 20 minutes... Please don’t answer this with one answer, blank or ridiculous answer this is serious.

What is the value of x? enter your answer in the box. photo attached.

If you could answer these your a life saver

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)