Invasions by the barbarian tribes.
If toddlers think about the range of possibilities of an action before they perform the behavior, they are engaging in Mental representations.
<h3>What is Mental representation?</h3>
This is known to be a kind of hypothetical view that is seen or given so that one can stand for a kind of perception, thought, memory, etc.
A mental view can be regarded as a form of hypothetical internal cognitive symbol that stands for external or mental reality. This can be done by anyone, even toddlers.
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Answer:
d. All of the above are correct.
Explanation:
Economists are scientists who study the processes of production, distribution, accumulation and consumption of material goods. They also look for factors directly related to restraint or moderation in spending, and factors related to savings. Economists study the notion of how societies use resources to produce valuable goods and how these goods are distributed among individuals.
Based on this, we can say that economists would study whether the US unemployment rate has fallen by two percentage points in recent years, but we can also say that they would study the following situations:
- Mitch chooses to work overtime to earn extra income for his family.
- Megan sells her physics textbook last semester to her roommate for half the price of a new textbook.
Put very simply, as one muscle contracts, the corresponding muscle relaxes.
Explanation:
I think it's $840
For markup, it's 80% which means 4/5
GP/Cost = 4/5
GP/4200 = 4/5
5×GP = 4×4200
5GP = 16800
GP = 16800÷5 = 3360
Therefore, if we less the markup from the cost, what is left is 4200-3360 = 840
I'm a little bit unsure but I tried to help .. please do consult one more answer from an another brainly :)
