Is the relation shown in the table a function? Use the graph and justify your answer. A. Yes. The relation is a function. The graph of the function is a straight line and has a constant rate of change.

B. Yes. The relation is a function. The graph of the function is a curve.

C. No. The relation is not a function. The graph of the relation does not pass through the origin.

D. No. The relation is not a function. The graph of the relation is not a straight line.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?