standard_description: Derive the formula for the sum of a finite geometric series (when the common ratio is not 1), and use the formula to solve problems. For example, calculate mortgage payments.
problem_activity: Task
Compare the number of circles in each box. If they are equal, write a number sentence. For example:
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$$4+3=5+1+1$$
If they are not equal, write "not equal."
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aligns: no