Someone please help me idk what to do

Me find the value of x each figure.

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25