Answer:i am sorry bud i have nio ideavjkfdav
Step-by-step explanation:fdanmfva e.dn f,da/
The answer is 4.81x 10^13. By the way your welcome.
Simplify 10^4 to 10000
8.5x10000-3.0x10^3
Simplify 8.5x*10000 to 85000x
85000x-3.0*10^3
Simplify 3.0x10^3 to 3*10^3
Answer 85000x-3*10^3
He will need 24 more hours. Hopefully helpful