Final answer:
To find the monthly salary from a weekly earning of $289, multiply by the average number of weeks in a month (4.33), which results in approximately $1,252.37.
Step-by-step explanation:
To calculate the monthly salary from a weekly earning of $289, we use the assumption that each month has about 4.33 weeks on average (which is the result of 52 weeks per year divided by 12 months). Therefore, multiply the weekly earnings by this average.
$289 (weekly earnings) × 4.33 (weeks per month) = $1,252.37
So, the correct monthly salary from the gross weekly earnings of $289 would be approximately $1,252.37, which is closest to option A, $1,252.33 (considering rounding differences).