Final answer:
Adrienne bought 8 notebooks.
Step-by-step explanation:
To find how many notebooks Adrienne bought, we need to subtract the amount spent on poachers boards from the total amount spent on school supplies. So, if Adrienne spent $19.30 in total and $5 on poachers boards, then the amount spent on notebooks can be found by subtracting $5 from $19.30:
$19.30 - $5 = $14.30
Next, we need to divide the remaining amount by the cost of each notebook, which is $1.65:
$14.30 ÷ $1.65 = 8.6667
However, since you can't buy a fraction of a notebook, we can round down to the nearest whole number. Therefore, Adrienne bought 8 notebooks.