Prove the identity.
cosh(−x) = cosh(x)

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost