C=18
if c=54 when n=9, and you need to know c when n is 3, just divide 54 by 3 as well! hope this helped
We can't answer this if we didn't see the video.
Answer:
D
Explanation:
Common sense I guess............
It was commercially introduced in 1839, a date generally accepted as the birth year of practical photography. The metal-based daguerreotype process soon had some competition from the paper-based calotype negative and salt print processes invented by William Henry Fox Talbot
