A(n) = a(0) x (1/5)^(n)
Where (n) is the term number and a(0) is the first term
For example,
a(1) = 25(1/5)
= 5
a(2) = 25(1/5)²
= 1
And so on
To solve this, you would do 2.45 x 160, which is 392.
15 books in 6th grade
18 books in 7th grade.
% Change = (18 - 15) /15 * 100%
= 3/15 * 100%
= 1/5 * 100% = 20%
Percent change = 20%.
