CXB = 40 degrees
I am not positive but from what I have looked up this is the answer.
To simplify rational expressions, simply see and check if there is a common number or same number that can be divided from in both. If not here, you would simply multiply the numbers together.
Then simplify if you would need to.
It would be 85x/6
You reduce it to 1/6 because 6 goes into 6 once and 6 goes into 36 six times giving you 1/6
0.7 is rounded to the tenth place
