For the given question, the summation that represents the money in account is:

The principal amount if compounded annually, the formula that represents the amount to be received after n years is:
where A is the amount received after compounding, P is the principal, r is the rate of interest and t is the tenure.
<h3>Solution:</h3>
Given:
Annual interest rate(r) is 5.5%
Principal is(P) $300
Tenure is(t) 10 years
On substituting the values in the formula 
The amount received after compounding at the end of 1 year will be:

Similarly, the amount to be received after 2 years will be:

The amount received after 10 years will be:
upto 10 years
Therefore the summation that represents the money in account after 10 years is:

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Answer:
Secondary school is from grades 7-12 (middle school except for 6th grade and then all of high school)
So it falls between primary school and college
Charlie is a manager who, every week, has to review and approve reports, monitor the performance of subordinates, set the vision and goals for the team, set the structure for the team, and communicate with executives. However, Charlie seems to be in meetings all of the time and has little time to review and approve reports. Charlie is most likely experiencing a hard time at work
<h3>Who is a manager?</h3>
A manager is a leader who have people who directly reports to him. He is charged with the duty of supervision am ensuring that a company goal and objective is achieved.
Therefore, Charlie seems to be in meetings all of the time and has little time to review and approve reports. Charlie is most likely experiencing a hard time at work.
Learn more on manager below
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