Answer:
96 dollars.
Explanation:
Given that Ella earns some extra christmas shopping money baby elf-sitting but after stocking up on wrapping paper she only has a third of her earnings left.
Let Ella earnings = E
Third of her earning left = E/3
She also spent $12 on a stylish new santa hat.
That is, E/3 - 12
What were her elf-sitting earnings if she only has $20 left?
Then,
E/3 - 12 = 20
Collect the like terms
E/3 = 20 + 12
E/3 = 32
Cross multiply
E = 32 × 3
E = 96 dollars
Therefore, her elf-sitting earnings is 96 dollars.