Answer:
Choice C. 5 miles per hour
Step-by-step explanation:
(1/4)(20) = 5 per hour
Dana can type 90 words per minute.
Since, 1 minute =
hours
Therefore, number of words she can type = 
= 90×60
= 5400 words per hour
If she types
words in 'x' hours.
Number of words Dana types with the given speed in 'x' hours = Speed of typing × Time
= 
Therefore, 


hours
Therefore, Dana types
words in 48.15 hours.
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brainly.com/question/621754
Answer:
The range gives you the spread of the whole data set, the interquartile range gives you the spread of the middle half of a data set.
Step-by-step explanation: