<span>The
economist Julian Simon bet in 1980 that the prices of five free traded
commodities would decline in ten years. In 1990 Simon won this bet against
the neo-Malthusian Paul Ehrlich.</span>
The 16th amendment to the United States constitution allows congress to levy a tax on income.
Answer:
Lewis and Clark's expedition would likely not have been successful without Sacagawea's help, because they would not have been able to communicate with the Native American tribes they met along the way and therefore would have had trouble trading for horses and supplies.
