Amy bought 6 pizzas for her family. John ate half a pizza as a pre-dinner snack. After dinner, the family had one and three-quarters of a pizza left. How much pizza did the family consume during dinner time?

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?