Sam has 128 marbles how many hundreds are in this number

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

Which of the choices shown could be used to prove that aacp=abcp ?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)