The local bodega sells bags
of Cheetos and bags of Takis.
Cheetos cost $2 per bag and
Takis cost $1 per bag. One
day, the bodega sold 30 bags
of Cheetos and Takis for a total
of $54. How many of each type
I of snack did the bodega sell
that day?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?