Answer:
$9.375
Step-by-step explanation:
First, we should take all of the salary's and add them together. That is $9.00+$9.25+$8.75+$10.50 which is $37.50. Now, we take 37.50 and divide it by the number of workers which is 4 and that is 37.50/4 which is 9.375. So the answer is $9.375