(a) alan bought
26
pounds of flour for
$11
. how many dollars did he pay per pound of flour?
(b) at smith's bike rentals, it costs
$33
to rent a bike for
8
hours. how many dollars does it cost per hour of bike use?
if necessary, round your answers to the nearest hundredth.

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?