How can I apply JOB in practical ways to increase my effectiveness?

Unclear question. I inferred from a general perspective.

Explanation:

Most job applications involve a proper understanding of the job description. This allows you to compare your skills and experience with what the employer is looking for.

Also, it is important to complete all the required fields in the job application so that can state your interest in the job. Additionally, having a good social media profile that has does not have any disqualifying details, may be helpful so that employers do not look up your profile and then find reasons to dismiss your application.

Total Cost of Input=$9*50units

=$450

Cost per unit of productions=Total Cost/Output

=450/300

=$1.50 per unit