Amodel rocket is 8 inches long. if a real rocket is 200 feet tall, which of
the following have the same constant of proportionality as the model rocket
to the real rocket?
a. a toy bear is 4 inches long and a real bear is 100 feet.
b. the width of a room on a blueprint of a house is 3 inches and the
width of the real room of the house is 70 feet.
c. the length of a model car is 6 inches and the length of the actual car
is 150 feet.
d. the height of a door frame is 72 inches and the height of a tree is 30
feet.