4/5 of a mile in nine minutes, express speed as a unit rate, in miles per hour.

16/3 mile/1 hour or 5.33miles/1 hour

Explanation:

1 hr= 60 min

1) find unit rate and multiply unit rate by 60

unit rate= 4/5 divided by 9= 4/45 miles per min

4/45*60=16/3

currancy

explanation:

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.