I turn the mixed numbers into decimals before doing anything else.
11 2/5----> 57/5----> 11.4
4 2/7----> 30/7----> 4.29
2 1/7----> 15/7----> 2.14
11.4=q-4.29+2.14
11.4=q-2.15
13.55= q
13.55 converted to a fraction is 13 11⁄20
q=13 11⁄20
Your answer is 3/5, the picture below shows how sin cos tan work!
It would come out to 240/50 which would equal 4.8
plus 0.5 which would equal 5.3 so d is your answer
Sub in 6 for x in the given function, you should get +-77/2
