What is theoratical probability

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?