A manufacturing firm is hosting a safety certification course for its employees. A total of 45 workers attended. The cost for a "Full-Certification" ticket is $120, while a "Recertification" ticket is $80. Let $f$ represent the number of employees who purchased a Full-Certification ticket. Match each description with the correct algebraic expression used to organize this information in a mixture table.

A corporate travel department is booking 40 train tickets for a regional meeting. The tickets consist of a mix of Standard Fare and Peak Fare. If $s$ represents the number of Standard Fare tickets, which algebraic expression represents the number of Peak Fare tickets using the known-total technique?

A corporate training coordinator is managing ${}75$ participants for a leadership summit. The participants are split into two groups: 'Executive' and 'Management.' If $e$ represents the number of Executive participants, the expression $e - 75$ correctly represents the number of Management participants using the known-total technique.

A corporate event coordinator is auditing the ticket revenue for a regional leadership seminar. To accurately determine the number of full-fare and reduced-fare attendees sold, they must follow the standard seven-step problem-solving strategy. Arrange the following actions in the correct sequence to solve this ticket mixture problem.

Identifying Expressions in the Known-Total Technique