Answer:
a) Gold = $1,380; Silver = $1,020
b) Gold = $1,300; Silver = $980
Explanation:
a) At first, with Qg = 60 and Qs = 270, the equilibrium prices for gold and silver are found by solving the following linear system:

Equilibrium price of gold is $1,380 and the price of silver is $1,020.
b) If the supply of gold increases to 120, since the goods are substitutes, there will be an increase in overall supply and the equilibrium price of gold and silver will decrease as follows:

Equilibrium price of gold is $1,300 and the price of silver is $980.
Answer:
Social media is a very good way of protesting because many many people go on social media sites and they can join in and instead of being abused by other people outside you can easily make a protest on video or a website.
The role of campaign manager is to oversee a campaign organization. He is responsible for coordinating the operations and activities of the campaign on day to day basis, and the activities that indirectly or directly support the campaign. He manages the activities and makes the campaign effective. His responsibilities include management of staff, coordination with the candidates, looking after campaign budget.
Answer:
In the first step jessica should discuss the basic and general ideas of creating business.
Explanation:
As mentioned in the question jessica teaches business studies in a college and she has to demonstrate her students the steps which would be involved in the starting of a business.
So, she has thought to demonstrate the ideas in a sequential order with proper examples and all the steps should be explained nicely.
So,here in the first step she will need to:
Start with the most basic and general idea of creation of new business.
Here we should know why a business basic idea so important:
- Because a proper plan will only lead to a business reality.
- The idea will work as a blueprint in the guidance of business
- The best idea will progressively lead to well settled company from a start-up.