12,548 rounded to the nearest thousand and 4,685 rounded to the nearest thousand

In a column proof the right column states your reasons

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?

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.