Which sentence contains an error in punctuation pertaining to commas?
a) hesitantly, he opened the bright, squared-shaped package.
b) the rain fell in steady, repetitive, cycles throughout the night.
c) many visitors enjoy the cool, inviting atmosphere of the natural spring.
d) we hoped and prayed for a clearing as we hiked the long, treacherous path through the hills.

hint: look for excessive use of commas.

The corrrect answer is option b) "The rain fell in steady, repetitive, cycles throughout the night."

Explanation:

One of the common uses of commas in punctuation is to separate adjectives that describe a noun, this is called "coordinate adjectives". In this case, in option B we are separating coordinate adjectives that describes a rain cycle  (steady and repetitive) but word "cycle" is a noun, not an adjective. Therefore, a comma is not needed before the noun "cycle".

In the rest of the options, the comma is used to separate adjectives that describe nouns so they are correct:

a) bright, squared-shaped package

c) cool, inviting atmosphere

d)  long, treacherous path

the god   the goddess of salt water, of fresh water   yet more powerful and perfect.

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