If two firms producing substitutes agree to fix prices, then their prices will 1. . If two firms producing complements agree to fix prices, then their prices will 2. .

increase; decrease.

Explanation:

Price fixing is a situation that occurs when two companies come together and form an agreement whereby the price of a particular goods or services will not be sold below that particular price.

When two firms producing substitutes agree to fix prices, then their prices will increase and when two firms that are producing complements fix prices, then their prices will reduce.

his average speed in km per hour is ≈ 55.4 km/h and about 15.4 m/s.

b. a single paragraph.

a paragraph is a series of sentences that are organized and make sense, and are all related to a single topic . almost every piece of writing you do that is longer than a few sentences should be organized into paragraphs. this is because paragraphs show a reader where the subdivisions of an essay begin and end, and thus the reader see the organization of the essay into subjects in order to be able to understand its main points.