Who among the following is the most productive?A photographer working for 50 hours produces value worth $5,000 for himself.A software engineer working for 70 hours produces value worth $35,000 for her company.A mine worker working for 100 hours produces value worth $1,000 for her company.A financial consultant working for 120 hours produces value worth $24,000 for his company.PhotographerSoftware engineerMineworkerFinancial consultant

A business owner makes 50 items by hand in 40 hours. She could have earned $20 an hour working for someone else. Her total explicit costs are $200. If each item she makes sells for $15, her economic profit equals:

Ali earns a salary of $8.20$⁢8.20 per hour at the video rental store, for which he is paid bi-weekly. Occasionally, Ali has to work overtime (time more than 4040 hours but less than 7575 hours). For working overtime, he is paid time-and-a-half. Ali's salary is given by the functionS(t)=8.2t328+24.62(t−40)if0<t≤40if40<t≤75𝑆(𝑡)={8.2𝑡if0<𝑡≤40328+24.62(𝑡−40)if40<𝑡≤75where t is the time in hours, 0<t≤750<𝑡≤75.Step 1 of 3 :  Find limt→40−S(t)lim𝑡→40−⁡𝑆(𝑡).

Ali earns a salary of $8.20$⁢8.20 per hour at the video rental store, for which he is paid bi-weekly. Occasionally, Ali has to work overtime (time more than 4040 hours but less than 7575 hours). For working overtime, he is paid time-and-a-half. Ali's salary is given by the functionS(t)=8.2t328+24.62(t−40)if0<t≤40if40<t≤75𝑆(𝑡)={8.2𝑡if0<𝑡≤40328+24.62(𝑡−40)if40<𝑡≤75where t is the time in hours, 0<t≤750<𝑡≤75.Step 3 of 3 :  Find limt→40S(t)lim𝑡→40⁡𝑆(𝑡).

Ali earns a salary of $8.20$⁢8.20 per hour at the video rental store, for which he is paid bi-weekly. Occasionally, Ali has to work overtime (time more than 4040 hours but less than 7575 hours). For working overtime, he is paid time-and-a-half. Ali's salary is given by the functionS(t)=8.2t328+24.62(t−40)if0<t≤40if40<t≤75𝑆(𝑡)={8.2𝑡if0<𝑡≤40328+24.62(𝑡−40)if40<𝑡≤75where t is the time in hours, 0<t≤750<𝑡≤75.Step 2 of 3 :  Find limt→40+S(t)lim𝑡→40+⁡𝑆(𝑡).

Bella is working two summer jobs, making $10 per hour landscaping and $15 per hour clearing tables. Last week Bella worked a total of 15 hours and earned a total of $180. Graphically solve a system of equations in order to determine the number of hours Bella worked landscaping last week, x, commax, and the number of hours Bella worked clearing tables last week, yy.