SAT Math Practice Question #2163 (Medium) | Test Citadel
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SAT Math Difficulty: Medium

Digital SAT Math Practice Question #2163

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

A cellular phone company offers a plan for $45 per month, which includes 5 GB of data. Each additional gigabyte costs $12. If a customer's bill for one month was $81, how many total gigabytes of data did they use?
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Translate English directly to algebra: 'per' means multiply by variable, 'initial/flat' means add constant.

Masterclass Solution & Distractor Trap Analysis

Extra charges: $81 - 45 = 36$. Additional GB: $36 / 12 = 3$ GB. Total data = $5 + 3 = 8$ GB....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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