A subtraction problem can be turned in to an addition problem because of negative numbers. Take 5-2=3 for example. If you change 5-2 into an addition problem then you would but he addition sign and a negative sign on 2. This will then leave you with the problem looking like 5+ -2. If you add 5 and -2 you will still get three.
Answer:
39.46
Step-by-step explanation:
ST = 1/2 (RV) = VQ = 6
answer
ST = 6
hope it helps
Honestly I don't know that is a really hard question