If $S_{n}$ denotes your total earnings after $n$ weeks of work, is the amount you earned during the $9^{\text {th }}$ week given by $S_{9}-S_{1}$ ?

Name: If $S_{n}$ denotes your total earnings after $n$ weeks of work, is the amount you earned during the $9^{\text {th }}$ week given by $S_{9}-S_{1}$ ?
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Quizplus · Accepted Answer

The amount earned during the 9th week is given by $S_9 - S_8$, not $S_9 - S_1$. $S_9 - S_1$ would represent the total earnings from the 2nd week to the 9th week.

If SnS_{n}Sn​ Denotes Your Total Earnings After nnn Weeks of Work, Is the Amount You Earned During The Work

If $S_{n}$ Denotes Your Total Earnings After $n$ Weeks of Work, Is the Amount You Earned During The Work