A model estimates that at the end of each year from 2015 to 2020, the number of squirrels in a.....

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Nonadaptive Digital SAT Section 2 Module 2 Question 25:

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 is less than 5 ?

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I’m still confused, aren’t we supposed to present the equation according to the amount AFTER 2015? So not including the value of 2015. Like if we were to represent this equation starting from 2016 our initial value would be 180 and coefficient 2.5. ??

dingytick
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are the blue book practice sat adaptive?

rishipatel