Question 7: e math instruction, can u guys help me?

A) n(0) = 20 because n(0) = 20(2)^0 and anything to the power 0 is 1. The reason that any number to the zero power is 1 is because any number to the zero power is just the product of no numbers at all, which is the multiplicative identity, 1

Thus, n(0) = 20(1) = 20. In terms of the situation, if 0 days have passed since Monday, 20 people know about the rumor.

b) n(-2) = 20(2)^-2 = 20* 1/(2^2)
=20/(2^2) = 20/4 = 5.

In terms of the situation, two days before Monday, 5 people know the rumor.

It was on the 19th and the 20th century when Photojournalism came out and became popular in the US and Europe. The photographs captured were mostly from the war. Some captured interesting stories about culture. The largest magazines come from Europe called Münchner Illustrierte Presse and the Berliner Illustrirte Zeitung. While in America it was known as Life and Look.

Explanation:

just took test