A base angle of an isosceles triangle is 27 degrees. What is the measure, in degrees of the vertex angle?

Given the following statements, which is the best

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

Can someone me do math because i am having a breakdown rn because i don’t get it