How do I complete this arithmetic sequence?

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

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?