Observe this:

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When working through the questions in the no-calculator section of the SAT Math test, you will answer questions on:

Basic math, including fractions, decimals, percentages, and ratios 
Algebra, including linear equations, coordinate geometry, and quadratic equations 
Geometry, which covers both basic shapes and three-dimensional solids
Word problems, including rate of travel, averages, probability, and equation setup 
Tables and graphs, including data analysis


Observe this: <img alt='images' src='https://www.fatskills.com/images2/SAT/eq03075.png'/><!--<m:math display='block' overflow='scroll' xmlns:m='http://www.w3.org/1998/Math/MathML'><m:mrow><m:mi>A</m:mi><m:mo>=</m:mo><m:mi>P</m:mi><m:mfrac><m:mrow><m:mi>r</m:mi><m:msup><m:mrow><m:mrow><m:mfenced open='(' close=')'><m:mrow><m:mrow><m:mn>1</m:mn><m:mo>+</m:mo><m:mi>r</m:mi></m:mrow></m:mrow></m:mfenced></m:mrow></m:mrow><m:mrow><m:mi>n</m:mi></m:mrow></m:msup></m:mrow><m:mrow><m:msup><m:mrow><m:mrow><m:mfenced open='(' close=')'><m:mrow><m:mrow><m:mn>1</m:mn><m:mo>+</m:mo><m:mi>r</m:mi></m:mrow></m:mrow></m:mfenced></m:mrow></m:mrow><m:mrow><m:mi>n</m:mi></m:mrow></m:msup><m:mo>-</m:mo><m:mn>1</m:mn></m:mrow></m:mfrac></m:mrow></m:math>-→<br>This formula gives you the payment amount per period for a loan, where <em> A is the payment, <em> P is the principal loan amount, <em> r is the interest rate per period, and <em> n is the total number of periods.<br>Which of the following equations gives <em> P in terms of <em> A, r, and n?