Answer:

Step-by-step explanation:

1. Negative
Explanation: A negative minus a positive will be a negative
2. Negative
Explanation: If you use your order of operations a negative multiplied by a negative will be positive but since BxB would be greater than A it would be negative for example 2-8 would equal -6
5/10 kilogram per 1/6 minutes = 5/10 * 6 = 30/10 = 3 kilograms/min
3 kilograms/min * 60 min/hour = 180 kilograms/hour
180 kilograms/hour * 24 hours/day = 4320 kilograms/day
4320 kilograms/day * 365.25 days/year = 1,577,880 kilograms/year