If % of the registered voters cast votes in an election, how many registered voters are there? Use pencil and paper. In another election % of the registered voters cast votes. How do the number of registered voters compare in the two elections? Show your work.

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?