Answer:
The correct option is D
Explanation:
A key characteristic of pandemic influenzas is that they have the ability to mutate rapidly. When the immunity of human increases the pandemic virus changes.
Answer:
Answer 2 : This inventory system computes and records costs of goods sold at the end of the period.
Explanation:
The time at which records of costs of goods sold is done determines a company`s inventory system.
Two inventory systems exist which companies can use in their business which are Periodic and Perpetual inventory systems.
Periodic Inventory System
In this system recording of cost of goods sold is done at the end of a certain period.It could be after a week, month or year.This is the type is system that is being explained in the question.
Perpetual
The other is the other system of recording cost of goods sold. In this system cost of goods sold is computed at end of each sale ( at the time of sale)
Hence it is important to note when the count of inventory is done. If at the end of a period then its Periodic and when count is done after every sale then that is Perpetual.
A perfectly competitive market has many buyers and sellers (option c).
<h3>What is a
perfectly competitive market ?</h3>
A perfectly competitive market is a market where there are many buyers and sellers of identical goods and services. Market prices are set by the forces of demand and supply. There are no barriers to entry or exit of firms into the industry. These makes buyers and sellers price takers.
An example of a perfectly competitive market is the market for tomatoes.
To learn more about perfect competition, please check: brainly.com/question/17110476
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Answer:
2000 units
Explanation:
We apply the contribution margin concept in solving this.
The selling price is $5
The $1000 overhead cost represents fixed costs.
The $2.50 material cost is the variable cost.
The salary of $4000 is like profits.
Bob has to sell x items to meet the break-even and attain $4000
Break-even = Fixed cost/ contribution margin per unit
fixed cost =$1000
contribution margin = Selling price - variable cost
=$5 -$ 2.50
=$2.50
break-even in units = $1000/2.50
=400 units
To achievea $ 4000 salary , Bob has to sell 400 units + $4000/2.50
=400 unit +1600 units
=2000 units