Final answer:
Without the specific equation for Jamal's line of best fit or additional data points, we cannot accurately determine his expected salary after 13 years. The salary figures provided in the options do not align with the context of the salary ranges given, and a linear relationship between years and salary would normally be necessary information for such a calculation.
Step-by-step explanation:
If Jamal's line of best fit is accurate, we must first understand the context of the question. Jamal could be plotting his expected salary against his years of experience. However, without the exact equation for the line of best fit, we cannot calculate the exact expected salary after 13 years. We can assume he is modeling the salary increase over years, likely with a linear relationship. If so, we would find the y-value corresponding to x=13 (where x is the number of years), on the line of best fit.
Using the context provided from the salary ranges, we do not have enough information to pinpoint one of the answer choices a-d as they all fall outside the provided salary bands. Therefore, without the specific equation or additional data, we can't select the accurate response from the options provided.
It is important to have either a table of values, the slope of the line, the y-intercept, or two points on the line of best fit to calculate or predict future values accurately.