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What is the value of y? round to the nearest tenth

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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