1. The problem statement, all variables and given/known data Add (9.8x10^3s)+(9.9x10^4s)+(0.017x10^6s) 2. Relevant equations None 3. The attempt at a solution I have entered 125800, as well as 1.26x10^5 but the website marked both of those wrong. I've done this problem every way you could do it I think and it comes out to the same answer but the program won't accept it.