<human>:  To be promoted to the next school year, Jane takes 3 tests that together must total at least 42 points. On her first test, Jane scored 15 points, on the second test she scored 18 points. What is the minimum number of points she must score on the third test to pass?
<bot>: How many points did Jane score on the first two tests? ** Adding the points obtained in the first two tests, Jane scored 15 + 18 = <<15+18=33>>33 points.
How many points must Jane score on the third test to pass? ** To pass, Jane must score 42 - 33 = <<42-33=9>>9 points.
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