Calculating Perimeters and Differences

What is the perimeter of a rectangle with a length of 5 cm and a width of 3 1/2 cm?

• 17 cm

• 8 1/2 cm

• 15 cm

• 10 cm

Tucson's average rainfall is 11 1/4 inches and Phoenix's is 3 3/5 inches. How much more rain, on average, does Tucson get than Phoenix?

• 8 1/20 inches

• 7 13/20 inches

• 14 19/20 inches

• 7 7/20 inches

The temperature in Austin, Texas, was -10°F. It dropped 2 1/2°F, then increased 50 3/4°F. What was the final temperature?

• 38 1/4°F

• 37 1/4°F

• 42 1/4°F

• 40 1/4°F

What is the total duration for all three eclipses listed in the table?

• 9 and 3/4 minutes

• 8 and 3/4 minutes

• 9 and 1/4 minutes

• 10 and 1/4 minutes