Final answer:
Greg expected to collect $250.
Step-by-step explanation:
To find out how much money Greg had expected to collect, we need to subtract 37.5% of $400 from $400.
First, we calculate 37.5% of $400;
37.5% of $400 = (37.5/100) x $400 = $150.
Then, we subtract $150 from $400 to find how much Greg had expected to collect:
$400 - $150 = $250.