Linear Function Models 8.F.B.4 Grade Practice Test Questions TOC | Lumos Learning

Linear Function Models 8.F.B.4 Question & Answer Key Resources Grade 8 Mathematics - Skill Builder + FSA Rehearsal

Grade 8 Mathematics - Skill Builder + FSA Rehearsal Linear Function Models

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A music store is offering a special on CDs. The cost is $20.00 for the first CD and $10.00 for each additional CD purchased.

Which of the following functions represents the total amount in dollars of your purchase where x is the number of CDs purchased?