For math test , help me .

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

Find the maximum value of p= 4x + 5y subject to the following constraints :

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air