How do you factor numbers ex. 9t-27

A(t)=728(1+0.04)^t how much money did aditya originally invest

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.

An ant travels at a constant rate of 30cm every 2 minutes. at what speed does the ant travel per minute