Biologists introduced a population of bacteria to a test environment. The functionfff models the population size (in thousands) as a function of time (in days) after introduction. Plot the point on the graph o that corresponds to when there are no more bacteria in the population.

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18