Whats the power/exponants of 36

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

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.

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?