<span>A variant-ratio schedule rewards behaviors an average number of times on an unpredictable basis. The schedule has to be a ratio because it refers to a number of times the behavior must occur to be rewarded not the amount of time that must pass like an interval schedule. The schedule cannot be fixed because it says "average" not a specific amount of time or number of behaviors; therefore, it is a variant-ratio schedule.</span>
Answer: By creating monopolies and establishing trusts.
Explanation:
By the late nineteenth century, trusts and monopolies had taken over the American economy. This meant consumers were obliged to face high prices for everyday products, and a reform of regulations in the industry began to be demanded.
A trusts is an organization of many businesses within the same business that by combining forces, gain control over production and distribution of certain good, in order to limit competition.
Monopolies are companies that hold total power over an area of the economy, and can, therefore, set any price.
The correct answer is Portugal. Portuguese sailors visited Japan in 1543, but diplomatic relations started later in the 19th century. This period of time is often entitled Nanban trade and Portugese sailors would pick Nagasaki as their trading post. As a concequence, Portuguese was the first Western language to have a Japanese dictionary and a lot of goods in Japan carry Portugese names.
They are preserve a dead body so they're happy