What device has been increased social media use by the largest degree

Why are the majority of the world's economies mixed? what may happen to the "pure" types of economies (traditional, socialist/command, market capitalist) when they incorporate elements from other economic models?

What was the goal of congress when it passed the sherman antitrust act to break up corporate trusts? a. to remove government regulation from businesses b. to return private competition to the marketplace c. to lower taxes on small and medium businesses d. to prevent politicians from investing in businesses e. to increase laissez-faire ideals in the marketplace

When the constitutional convention laid out the framework for the executive branch they wanted