If a line passes through the points (20,5) and (10,10), then the slope of the line is -2

Which of the following provides support for the use of discretion in economic policy-making?

A) any policy rule that is based on a particular model will prove wrong if that model is wrong B) the existence of a political business cycle C) the conclusions of Friedman and Schwartz with respect to monetary and fiscal policy D) the Watergate scandal

Suppose Acme and Mega produce and sell identical products and face zero marginal and average cost. Below is the market demand curve for their product.Suppose Acme and Mega decide to collude and work together as a monopolist with each firm producing half the quantity demanded by the market at the monopoly price. If Mega cheats on the agreement by reducing its price to $1 while Acme continues to comply with the collusive agreement, then Mega will then sell ________ units and Acme will sell ________ units.

A. 100; 0 B. 150; 50 C. 150; 0 D. 100; 50