In this problem, you must use SohCahToa which basically means:
Sin - opposite over hypotenuse
Cosine - adjacent over hypotenuse
Tangent - Opposite over hypotenuse
So in this picture we have 4 -which is on the opposite side of x - and a 5 -which is the hypotenuse of the triangle. This means we must use sin.
Using a calculator you put in:

Your answer is 53.13 degrees
There are 16 ounces in a pound.
Therefore, a 20 ounce steak is 1 pound 4 ounces.
If you would like to know how much do you save per month, you can calculate this using the following steps:
your expenses: 36% of 2,847.69 = 36% * 2,847.69 = 36/100 * 2,847.69 = 1,025.17
2,847.69 - 1,025.17 = 1,822.52
saving 40% of your discretionary money: 40% of 1,822.52 = 40% * 1,822.52 = 40/100 * 1,822.52 = 729.008 = 729.01
The correct result would be: You can save 729.01 per month.