The answer is 21
the area of the small rectangle is 6 and the area of the bigger one is 15
15+6=21
It will take her 9 days to run 4 miles. She will not be able to run in whole week.
Discrete data is numerical but only has a limited number of values.
In this case, the number of rides in an amusement park would be discrete because you cannot have, for example, 5.6 rides.
The correct answer is A.
It is more appropriate to report this rate as 8 kilometers per second because centimeters is too small to measure how far a space shuttle can travel every second. Just as we don't use centimeters to measure how far a car can travel in an hour, we don't use centimeters to measure such things. Thus, using kilometers is more appropriate because the the number reported is smaller, making it easier for us to use.