When she went into the store stop center for one dollar and then back to our system is there any other cost x dollars She has left in this purchase

How do i do this? i don’t understand

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

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.