student surveyed boys and girls separately to determine which sport was enjoyed the most after completing the boys survey was a determined of that for every three boys who enjoyed soccer and five boys who enjoyed basketball the girls survey had ratio of girls who enjoyed soccer to to of girls who enjoy basketball 7 to 1 if the same number of boys and girls were surveyed and 90 boys enjoyed soccer how many girls enjoyed each sport ​

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?