Answer:

Step-by-step explanation:


Answer:yes
Step-by-step explanation:
Answer:
to big but i will slove it for u ok so see solution c one is correct
Answer:
7.72 * 10^15
Step-by-step explanation:
8*10^15 - 2.8*10^14 = 7.72 * 10^15
The answer is D because all the rest of the statments are untrue. d is also right because 4 people walked 3-5 miles and 3 people walked 6-8 miles and as you know, 3+4=7