To download movies off the internet, you must pay $1.99 per movie, plus a onetime fee of $5.50. Which expression shows the total cost to download n movies? * a.(5.50 x n) + 1.99
b.5.50 + (1.99 x n)
c.(5.50 x n) + (1.99 x n)
d. 1.99 x n

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?