How are alligators well adapted to live in wetlands?
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O
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They have a sleek body and strong legs, for moving.
They have sharp teeth and powerful jaws, for eating.
They have good eyesight, for observing prey.
They have a slow metabolism, for needing less frequent meals.

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?