The length and width of a rectangular playground are 500ft to 750ft. anna makes a scale model of the playground using a scale of 4 centimeters: 25 feet. what

are the dimensions of anna’s scale model? a. 2 centimeters by 5 centimeters b. 20 centimeters by 30 centimeters c. 80 centimeters by 120 centimeters d. 125 centimeters by 187.5 centimeters

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?