1. which of the following represents a unit rate?

$4

12 books

5 pages
this one
2 minutes

80 beats

1 minute

72 inches

2 yards

2. a nonstop flight from albuquerque, nm to atlanta, ga takes 3 hours. if the plane flies a total of 1,269 miles, what is the plane's unit rate in miles per hour?

3,807
1,266
432 this is what i pick
423

3. three different bags of pretzels are sold at the store. which bag of pretzels is the best buy?

bag a: 10 ounces for 1.10
bag b: 12 ounces for 1.38
bag c: 6 ounces for 0.84

bag a
bag b
bag c this is what i pick
bag a and bag b are equally good values.