There are $12$ inches in a foot, so the bicycle is traveling at $12(20)=240$ inches per minute.  There are $60$ seconds in a minute, so the bicycle is traveling at $\frac{240}{60}=\boxed{4}$ inches per second.
Question:
A bicycle is traveling at 20 feet per minute. What is the bicycle's speed expressed in inches per second?
Answer:
Let's think step by step.

user
4
A bicycle is traveling at 20 feet per minute. What is the bicycle's speed expressed in inches per second?
test