Solve Using the Substitution Method $$\begin{array} { l } y = 2 x - 4 \\4 x + y = - 28\end{array}$$

question 75

Multiple Choice

Solve using the substitution method.
- $$\begin{array} { l } y = 2 x - 4 \\4 x + y = - 28\end{array}$$

• A) \(( - 5 , - 14 )\)
• B) \(( - 12 , - 4 )\)
• C) \(( - 12,20 )\)
• D) \(( - 4 , - 12 )\)

Use the rule of 70 to estimate the doubling time of an investment at a given interest rate.

Describe the shape and implications of different utility functions, particularly in the context of risk aversion.

Assess the role of insurance and risk management in personal finance and investments.

Understand the impact of portfolio changes on expected return and risk.

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Definitions:

Depreciation Expense

The systematic allocation of the cost of a tangible asset over its useful life, reflecting the decrease in the asset's value over time.

Useful Life

The estimated duration a fixed asset is expected to be economically utilisable by the business before it's fully depreciated.

Goodwill

An intangible asset representing the value of a company's brand, customer relationships, employee relations, and other non-physical assets.

Intangible Asset

An asset that lacks physical substance but is still valuable because of its potential economic benefits, such as patents or trademarks.