In international trade, an exchange rate is

Which shows the best path to find the number of centimeters in 1 yard?

Sariah enters a room with several chirping crickets in it. upon first entering the room, sariah can hear the chirping; however, as she begins to talk to her friends, she is no longer aware of the chirping even though it is still there. the fact that sariah no longer perceives the chirping sound demonstrates sensory

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?