Final answer:
Sandy's work schedule during Spring Break, which totals 37 hours and does not exceed 8 hours on any day, appears to be acceptable under federal law for her age. However, it is necessary to also check state laws to confirm compliance.
Step-by-step explanation:
The work schedule proposed for Sandy during Spring Break involves her working a total of 37 hours: 4 hours each day for 5 weekdays (20 hours), 9 hours on Saturday, and 6 hours on Sunday. Looking at the federal law established under the Fair Labour Standards Act, the restrictions for 14 to 16-year-olds during school vacations include not working more than 8 hours per day and a maximum of 40 hours per week. Since Sandy is 15 years old, her proposed work schedule of 4 hours on weekdays is acceptable, and the 9 hours on Saturday do not exceed the maximum daily hours allowed during school vacation. Also, her total hours for the week do not exceed 40 hours.
Nevertheless, it is essential to consider state laws, which may have additional restrictions or allowances. Therefore, while federal law seems to allow her proposed work schedule, one must still confirm with state laws to ensure compliance.