Hey i need help with this!! perhaps some working could help it3 (−2) + 4 − 2 (−1)

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?

Acircus act has 3 times as many elephants as acrobats. jorge noticed that all together there were 56 legs in the circus ring. how many elephants were in the show?