Question

☺WILL MARK BRAINLIEST IF YOU GIVE THE RIGHT ANSWER☺

Answer 1

Simple.
Plug in what you known into the equation.
150 = 6e^2.
Divide 150 by 6 to isolate the variable.
150/6 = e^2
25 = e^2
take the square root of 25
5 = e

Hope this helps!