Answer:
the last one
Step-by-step explanation:
Translation by moving the two shapes to the same points you can verify its congruence.
So the question tells to express the expression in your problem where N0 is N-naught and the symbol represent the lower case Greek letter lambda. So the best answer or expression would be that the lambda is the wavelength of the expression. I hope you are satisfied with my answer
2x+3m=p because you don't know how many people there are you put a variable in place for that