Vivian and other members of her group are attending an event where they have to give short, uninterrupted speeches, one after the other. The moderator has a passive role during the course of the discussion, he or she has to simply introduce the presenters and manage the time frame
of the event. At the end of the discussion, the moderator engages with the presenters and audience to ask questions and point to areas of
agreement or disagreement.
Vivian is part of a

The marshall plan was designed to europe rebuild after wwii

The  knowledge gap  as been recast more recently as a “digital divide”  gap. with the internet and social media many things can be done faster and better. so much faster and better that those that do not have access to them are literally left out of the game. 

You need to figure out at which x-value does the graph has a tangent line slope of -1.remember, the derivative is the slope of the tangent line. so find the derivative function and set it to equal -1 to find the x-value that will have a tangent line slope of 0.differentiate with the chain rule.    set the derivative to equal -1 and solve for x.      take log base 10 of both sides. also recall that  .    so the x-coord of the point of tangency is .the y-coordinate of this point of tangency can be calculated using the original function:     using point-slope form, the equation of the tangent line is      the x-intercept of this tangent line is when the graph is at y=0.    this rounds off to  .choice c.