How to use joint cost concept to solve this question?

Question 4 (10 marks) Ioe Farineila, a local landscaper, worked for Keith Tenney. For $3 0.00 per week Farinella mowed the grass, trimmed the hedges, and weeded the planted areas around Keith's house. Ralph Myer, Tenney's next door neighbour, asked the landscaper for a quote to perform the same services for him. Farinella replied that the charge would be $27 if he came on a day other than Monday, the day he did the Tenney work, but would charge a total price to Tenney and Myer of $40 if he could do both on the same day. 4of5 MGT323H5 Tenney and Myer agreed to having the service done on the same day and to pay Farinella a total of $40. They are unsure ofhow to divide the total cost of $40 and have come to you for advice. REQUIRED: Advise Tenney and Myer how they could split the $40 cost based on what you learned in Management Accounting II. Give a rationale for each method. Choose one method as your "best" and justify your choice