12000+875=12875 the total he paid
12000*x/100*4=12875
480x=12875
x=12875/480
x=26,82 %
Answer:

Step-by-step explanation:

The whole picture is not token correctly
To solve for YW and VX I would use the Pythagorean Theorem. Add 19^2 to 31^2. Your answer should come out to be 1322. Now, find the square root of 1322. Due to the fact that it is not a perfect square, I would round this number. I am not sure if you were given a decimal place to round to, so I will just give you the full number (36.35932) Also, both diagonals are congruent, so ZX would just be half of 36.35932. Again, round the where you are asked to round.
Answer: D
Step-by-step explanation: