Final answer:
To determine the number of weeks Sharonda has washed her jeans, we can use a formula. However, the question does not provide enough information to solve for the number of weeks.
Step-by-step explanation:
To determine the number of weeks Sharonda has washed her jeans, we can use the formula:
Number of weeks = Change in length / Shrinkage per week
In this case, the change in length is 8 millimeters and the shrinkage per week is not given in the question. So, we are unable to determine the number of weeks without this information. The question does not provide enough information to solve for the number of weeks.