Plz help it’s due tomorrow

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

What is the inverse of the function f(x)=4x+8

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.