Over the span of a few days, the number of words in a particular document tripled every day. There were 161 words on the first day of this period. Which of the following represents the number of words, $w$, in the document $d$ days after the first day of the timespan.
The correct answer is (A).
current priority level - we all want this one
What’s here is foundational stuff tied to exponential equations. We love breathing room, but we’re not affording any here.
The 161 belongs in front of the parentheses, as that number represents the starting/initial amount.
We, like the test writers, are not seeking to be clever here. The fact that things are tripling is why there is a 3 inside the parentheses.
If things had been doubling….