Discussion: geometry

I need this

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

The area of square garden is 300m squared. how long is the diagonal?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.