Find the solution, part iiisolve each problem, then type your answers in thespace provided. don't forget to use commas whenneeded! 1. a traffic light was installedexactly 1 year ago. thetraffic light changes every 30seconds. how many timeshas the traffic light changedsince it was installed?

1,051,200. A traffic light installed a year ago it has changed 1,051,200 times since it was installed.

To solve this problem, we have to know that one hour has 3,600 seconds. Then, one day has 24 hours which means a day it has 86,400 seconds. If we divide the 86,400 seconds by 30 seconds (the rate of change of the traffic light), we obtain that in a day the traffic light changed 2880 times.

A year has 365 days, if we multiply the amount of change in one day by 365 days of an entire year, we obtain that the traffic light has changed 1,051,200 times after a year that it has been installed.

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)