$28 represents 35% of her earnings.
To find the total earnings of Julia, we need to find 100% of her earnings.
Step 1. Find how much is 1% of her earnings by dividing $28 by 35%:
[tex]\frac{28}{35}=0.8[/tex]
$0.8 is 1% of her earnings.
Step 2. Multiply the result from step 1 by 100 to find 100% of her earning:
[tex]0.8\times100=80[/tex]
Julia earns $80 from babysitting.
Answer: $80
