You should must check for an extraneous solution when the variable appears both inside and outside the absolute value expression
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What is an extraneous solution?</h3>
An extraneous solution is a solution that in obtained after completely solving an equation but it does not work in the original given equation.
You should must check for an extraneous solution when the variable appears both inside and outside the absolute value expression (Option D).
Learn more about extraneous solution: brainly.com/question/14054707
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A is addition
b is subtraction
c is division
Answer:217,000,000,000 (or just plain 217000000000)
Step-by-step explanation:7% is 0.07.
0.07 * 3.1 trillion