I'm really confused about this ! ! will make brainliest answer

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

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

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