John owes 15 dollars to Bill, then another 2 dollars to Joey. How much money does John have?
Since John has 0 dollars to give, he has (-15)+(-2) =-17 dollars (as 15+2=17, so the same can be applied negatively) as the first 17 dollars he gets has to be given to Bill and Joey
Step-by-step explanation:

34.215 kilometers you move the decimal to the left three places because Kilo means 1000 and there are 3 zeros in 1000. you move left because Kilometer is bigger than meter.
Answer: 
Step-by-step explanation:
By the Pythagorean theorem, the unknown side has length

Therefore,

Answer
f(x)=9/x , g(x) = x / x + 1 = 9/2
Step-by-step explanation: