For his phone service carlos pays a monthly fee of $19 and he pays an additional $0.07 per minute of use the lease has been charging a month is $97.75 what are the possible numbers of minutes he has used his phone in a month?

Anyone know? will mark brainliest if correct!

Don't know how to find x given these segment lengths

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