Answer:
The principal is $2400
Step-by-step explanation:
Given




Required
The principal amount
The principal amount is the amount invested.
From the question, we understand that $24000 was invested.
Hence, the principal is $24000
The statement that are important when representing functions are:
- It is important to explain what your variable represents and to include units.
- Functions may depend on more than one variable.
<h3>What is are
functions?</h3>
A function can be described as the relation between a set of inputs that have one output each. it help to display the relationship between inputs in a case whereby each input is related to exactly one output.
We can denote the function by f(x) where x is the input.
Learn more about function at:
brainly.com/question/1415456
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Step-by-step explanation:
Using the given formula :
I = P × R × T
I = 80000 × 15/100 × 4
I = $48000
He saves = 48000 +80000 = $128000
6,000,000,000+4,000,00+700,000+20,000+80