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Help!! Algebra 1 math equation

Help!! Algebra 1 math equation-example-1
User Rhapsodyn
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1 Answer

4 votes

Answer:

6

Explanation:

The answer is 6. You're looking for the rate of change in the number of DVD's. from 9,15,21,27, each time you add 6, so +6 is your constant variation.

User Rodrigo Juarez
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