Luisa's toaster oven which is in the shape of a rectangular prism, has a base that is 55 cm long by 40 cm wide. it is 30 cm high, luisa wants to buy a different oven with the same volume but a smaller length, so it will fit better on her kitchen counter. what is the possible set of dimensions for this different oven?

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?