Isaac wants to join a gym. he checked out the memberships fees at two gyms.

gym a charges a new member fee of $65 and $20 per month.

gym b charges a new member fee of $25 and $35 per month, but isaac will get a discount of 20% on the monthly fee.

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years