Answer:
1610 miles
Step-by-step explanation:
If she drives 70 miles per hour for 3 hours she travels 210 miles. Then if she flies 350 miles per hour for 4 hours she has traveled 1400. Adding these together you get that she traveled a total of 1610 miles.
Answer: 8.55x10^13
Step-by-step explanation: 1.9 x 4.5 = 8.55 10^10 + 10^3 = 10^13