Answer:
Commission = $375
Total earnings = $600
Step-by-step explanation:
He gets 3% of any sale he makes above %5500 which means his commission received on this sale is;
= 3% * $12500
= $12500
= 3* 125
= $375
This means his total earnings for the week will be the basic wage plus his commission
$225 + $375
= $600