Final answer:
To represent the scores for Jacob's fourth math test, the correct inequality is x ≥ 85.
Step-by-step explanation:
To find the inequality that represents the scores for Jacob's fourth math test, we need to consider the total sum of his scores and his desired average. Let's assume Jacob has taken three math tests and the total sum of his scores is 235. If he wants his new average math test score to be at least 80, we can set up the following inequality:
(235 + x) / 4 ≥ 80
Where 'x' represents the score Jacob gets on his fourth math test. Now we can solve this inequality to find the possible scores for his fourth math test:
235 + x ≥ 320
x ≥ 85
Therefore, the correct inequality that represents the scores for Jacob's fourth math test is x ≥ 85.