Answer:
-50x
Step-by-step explanation:
-6x times 9 which is -54x
-54x-3x = -57x
-54x+7
Answer: 126.
Here is an example of my work, just add your prefered numbers and boom, 126.
Also, mine was 200 instead of 300 and I got 84. So just plug in your number and boom.
Sorry, wt does it mean by angle A has sin 54