Answer: The first statement is true: The U.S. government spent $13 million less every year on military operations.
The mass of the first shipment at time t is

The mass of the second shipment at time t is

At time t, the ratio of m₁ to m₂ is

Therefore as a percentage,

Answer: B. 81.2%
Answer:
The comparision of an unknown physical quantity with a known standard quantity is measurement