Answer:
1/4 sugar = 5 glasses
1/4 x 22/5 sugar = 5 x 22/5 glasses
22/20 sugar = 22 glasses
1 1/10 cup of sugar = 22 glasses lemonade
Speed = distance/time
20 miles divided by 4 hours = 5 mph
ANSWER : 5mph
I would select A. Nitrogen due to the fact Nitrogen is found in most soil samples and Aluminum and mercury are metals. Also, limestone i don't find beneficial to plants whatsoever.