When maria comes home from work, she finds that her yard has been mowed and trimmed. an hour later, a man comes to her door to collect payment for the yard work. maria refuses to pay him because she has never seen him before nor had she hired him to do the work. which of the following is accurate?
a. this is an implied, unilateral contract, so she must pay.
b. maria has received unjust enrichment so a quasi contract is formed, so she must pay.
c. the court would make maria pay the reasonable cost of the work to be fair to both parties.
d. maria would not have to pay anything.

Skychefs, inc. prepares in-flight meals for a number of major airlines. one of the company's products is grilled salmon in dill sauce with baby new potatoes and spring vegetables. during the most recent week, the company prepared 4000 of these meals using 960 direct labor hours. the company paid these direct labor workers a total of $19,200 for this work, or $20.00 per hour. according to standard cost card for this meal, it should require 0.25 direct labour-hours at a cost of $19.75 per hour.1. what is the standard labor-hours allowed (sh) to prepare 4,000 meals? 2. what is the standard labor cost allowed (sh x sr) to prepare 4,000 meals? 3. what is the labor spending variance? 4. what is the labor rate variance and the labor efficiency variance?