Which examples are credible sources that could be used for an essay on the environment? Check all that apply.

What is the relationship between marginal external cost, marginal social cost, and marginal private cost? a. marginal social cost equals marginal private cost plus marginal external cost. b. marginal private cost plus marginal social cost equals marginal external cost. c. marginal social cost plus marginal external cost equals marginal private cost. d. marginal external cost equals marginal private cost minus marginal social cost. marginal external cost a. is expressed in dollars, so it is not an opportunity cost b. is an opportunity cost borne by someone other than the producer c. is equal to two times the marginal private cost d. is a convenient economics concept that is not real

Carrie works at a canned food production factory. the government wanted to give a boost to the salt industry, so it lined up numerous subsidies and tax exemptions for the sector. this lead to a decrease in production costs. this also meant that consumers could access canned foods at a lower price, which lead to an increase in demand for the product. which kind of economic system is carrie’s company dealing with? carrie’s company is dealing with a/an economy.

Uknow what i love about i ask a dumb question it is immediately answered but when i ask a real question it take like an hour to get answered