Help me with this please. Thanks!

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

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

What is the least common factor of 6 and 8