56,000 would be the answer. If you divide the 42,000 by 3 then add your quotient to the original number you get his salary before tax.
7 1/2 is already simplified to its lowest terms
The top left is the correct answer, because the sides are parallel.
Hope this helps!
The first one is 2,314,572,763 the other one is 7,156,134,563
