Which of these pieces of data about an animal at the zoo is considered numerical data?

A. Color
B. Height
C. Species
D. Gender

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

Which of the following contains a variable?

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?