1.
jorge four friends. each friend 4 other friends. if the pattern continues, how many people will receive during the sixth round? write your answer as a power. then simplify. show your work

2. evaluate the expression. show your work. 2a^{4} - 3b^{3}
if a = -2 and b = 3

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

Astudent simplified a rational expression as shown.

Anyone know? is appreciated! will mark brainliest if correct!