The mayor of a town places a map of the town on a coordinate grid with Town Hall at the point (0,0) and with each unit representing a mile. The town wants to run a new water pipe from point (-2,-4) to the point (6,-5). The pipe costs $25 a mile to lay. How much will the town spend on the pipe? [Round to the nearest tenth when you find the distance.] A) $102.50
B) $202.50
C) $210.00
D) $245.00

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?