I believe the building is 75.5 meters long
Cos x=5/12. Solve for x which is 65.37 degrees.
If we have a common ratio every set amount of time (and not a common difference or addition), this is an exponential relationship. An exponential equation would have a form like Money = (1000)(2)^(# of months), where every additional month would cause the money amount to double.
Reason: if you subtract 3 on both sides of the equal sign that will leave you with 7.
