< > = which sign belongs to 3 yards < 10 feet

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

Solve: 3x+y=6 4x-2y=18 show all work !

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?