Final answer:
To extend the list of years from the range C9:D9 to E9:G9, one must identify the pattern in the provided sequence and continue it, considering that the base year is set at 100, with preceding years being less than 100 and succeeding years being greater than 100.
Step-by-step explanation:
The question entails using values provided in a given range to extend a sequence. In this context, given the range C9:D9, you are expected to fill in the next cells E9:G9 with appropriate values that continue the pattern indicated by the values in C9 and D9.
Note that the base year has a value of 100, and years before it have values less than 100, whereas years after it have values more than 100. When we extend the list of years, we are assuming a continuous sequence or pattern from the provided data in the given range. For example, if the pattern indicated a steady increase or decrease, we would continue that trend.
It is critical to understand whether the numbers represent years directly or perhaps some other sequential data, such as indexes or growth figures that correlate to particular years in a time series.