Lance paid 6% sales tax on a $30 game.
What total amount did Lance pay?
A $30.60
C $33.00
B $31.80
D $36.00

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?