Answer
$\$2.20$ per block
Work Step by Step
We see that Adrian bought 108 blocks for $\$237.60$. To find out the cost per block, we divide:
$~~~~~~~~~~~~2.20$
$108\overline{)237.60}$
$~~~~~~~~\underline{216}$
$~~~~~~~~~~2160$
$~~~~~~~~~~\underline{2160}$
$~~~~~~~~~~~~~~~~0$
Therefore, Adrian paid $\$2.20$ per block.
