Assume the two lines ab and xy intersect as in the diagram below. which of the following statement are true ?

Shannon drove for 540 minutes. if she traveled 65 miles per hour, how many total miles did she travel?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

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?