Final answer:
Harriet's error is D) in Step 4. She forgot to move the decimal.
Step-by-step explanation:
Harriet's error is in Step 4. In this step, she forgot to move the decimal.
When converting a decimal to a percent, the decimal point needs to be moved two places to the right, and if necessary, zeros are added as placeholders.
So, the correct percent equivalent to 0.08 is 8%.