What is -33 + m = -29

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

1/3(x-10)=-4 solve for x with steps

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base