Hello :

by(1) :

subsct in (2) :

....(<span>cartesian equation )</span>
The answer is 65 degrees because a triangle is 180 degrees in total so if you add 53 and 63 you get 115 and subtract 180-115=65
You would convert the percent into a decimal, which would be 0.00039296, then multiply it by 9, which is 0.00354564. To find the total, you would do 9 plus that, which is 9.00354564.