Which economic activity is the most common in the United States?

After a measles epidemic wiped out half of the native population, the Cayuse came to distrust Whitman because more sick natives died from measles than white settlers. This led to an attack on the mission on November 29, 1847.

Explanation:

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: