Answer:
1) 8.5x10^8
2) 5.3x10^-3
3) 9.95x10^12
Step-by-step explanation:
Since they have the same exponents, you just add or subtract and leave the rest the same.
1. 850,000,000
2. 53/100 OR 0.0053
3. 9, 950, 000, 000, 000
