This is the answer to question 25 from the SAT Digital Practice Test Module 2, Section 2. The question is "A model estimates that at the end of each year from 2015 to 2020, the number of squirrels in a population was 150% more than the number of squirrels in the population at the end of the previous year. The model estimates that at the end of 2016, there were 180 squirrels in the population. Which of the following equations represents this model, where n is the estimated number of squirrels in the population t years after the end of 2015 and t≤5?" This math problem includes percentages, percent increases, equations, exponential equations, and word problems. Calculators ARE allowed on this section. This practice test is provided for free by the College Board. This video will show you how to do this problem and the logic behind it.

For a video with the answers to ALL the questions in this section, click here:    • SAT Digital Practice Test 1 Module 2 ...  

Videos about the math topics and skills needed for this SAT section:
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How to Find the Zeros of a Quadratic Equation -    • How to Find the Zeros of a Quadratic ...  
Sin Cos Tan! Intro to sine, cosine, and tangent AND sample problems! -    • Sin Cos Tan! Intro to sine, cosine, a...  
FOIL Method for Multiplying Binomials (2-MINUTE MATH!) -    • FOIL Method for Multiplying Binomials...  
How to Multiply Binomials! (FOIL Method) -    • How to Multiply Binomials!  (FOIL Met...  
Quadratic Formula! (2-MINUTE MATH) -    • Quadratic Formula! (2-MINUTE MATH)  
How to Use the Quadratic Formula -    • How to Use the Quadratic Formula  
30 60 90 Triangles! -    • 30 60 90 Triangles!  
How to Find the Area of a Circle and the Circumference of a Circle -    • How to Find the Area of a Circle and ...  
How to Find the Slope of a Line on a Graph OR with Two Points! (2-MINUTE MATH!) -    • How to Find the Slope of a Line on a ...  
What Is a Linear Equation? And How Do You Graph a Linear Equation? -    • What Is a Linear Equation? And How Do...  
How to Simplify Fractions! (explanation and examples) -    • How to Simplify Fractions! (explanati...  
Parallel, Perpendicular, or Neither? (explanation and examples!) -    • Parallel, Perpendicular, or Neither? ...  
How to Find the Area of a Circle and the Circumference of a Circle -    • How to Find the Area of a Circle and ...  
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Find the Equation of a Line with Two Points! -    • Find the Equation of a Line with Two ...  
How to Multiply Binomials! (FOIL Method) -    • How to Multiply Binomials!  (FOIL Met...  
How to Factor Quadratic Equations! (leading coefficient is 1) -    • How to Factor Quadratic Equations! (l...  
How to Find the Zeros of a Quadratic Equation -    • How to Find the Zeros of a Quadratic ...  
Slope Intercept Form of a Line -    • Slope Intercept Form of a Line  
Area of a Circle (2-Minute Math!) -    • SAT Digital Practice Test #1 MATH Mod...  
Circumference of a Circle (2-Minute Math!) -    • Circumference of a Circle (2-Minute M...  


Thank you so much for watching! If you have any questions on this video or if there are other specific topics you would like to see me cover, please leave a comment below.

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I have over 15 years' experience helping children, teens, and adults improve at math in topics ranging from addition to algebra to calculus and beyond. My goal is to make math easy to understand for anyone who wants to learn :-)

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