How do vietum and watergate shape American perception ?

Explanation:

In the United States there was the so-called Vietnam syndrome, by which the country lost its spirit of a united and victorious nation. Thousands of soldiers suffered serious consequences and were left paraplegics, with disabilities or with serious mental disorders as a result of this war.

for this case, we must find the number of deaths per day of the year 2015, in automobile accidents, knowing that 32,400 people died.

knowing that the year 2015 had 365 days we have the following division:

where "x" represents the number of deaths per day.

rounding off we have:

approximately, 89 people per day died in 2015

answer:

89 people per day

the underlined phrase is an example of : understatment