What was the scale of the model if Bob the Avenger appears to be 14 feet in height,but was actually a model 20 inches tall Is the answer 8.4?

1 unit of the model represents 8.4 units in reality.

The scale is therefore 1: 8.4

no the math - convert everything to inches

The scale is the real height divided by the model height. But we must use the same units.

Convert 14 feet to inches:
14 ft. x 12 inches/ft. = 168 inches

Divide by the model's height:
168/20
= 8.4

Answer:
The real life item is 8.4 times as big as the model.