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
75 additional minutes were used
$61.20-$49.95=$11.25
$11.25/$0.15=75 additional minutes
The slope is 1.5, and the y-intercept is -2.
Remember the equation y = mx + b
For the second question, your first option is correct, you would rewrite 8 in power-base form 8=2^3 as the first step to solving the equation, power base form is exponential form.
