In which situation is it NOT appropriate to use a colon? A. To join two independent clauses into one longer sentence
B. Before a list
C. Before an example
D. Before an explanation

Most likely this Answer will be A.

1)they use panels

2)they include images and words.

3)they contain gutters.

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