Answer:
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
Option B
I think its opinion B because its cheaper
Answer:
4 hours
Step-by-step explanation:
The speed of the first car is

While the speed of the second car is

The time it takes for each car to cover a distance d is

where
d = 960 km is the total distance covered
For car 1, the time taken is:

For car 2, the time taken is:

Therefore, the difference in time is:

Hey there!
We can condense 18 to 9 times nine. However, 9 isn't prime, so we can break that down to 3 times 3 times two, all of which are prime.
Hopefully this helps!