Final answer:
To earn at least $250 a week from tutoring math and Spanish, set up the inequality: 50m + 30s ≥ 250.
Step-by-step explanation:
To set up the inequality, we need to define the variables and express the goal in terms of hours spent tutoring math and Spanish. Let's say the number of hours spent tutoring math is represented by the variable, 'm', and the number of hours spent tutoring Spanish is represented by the variable, 's'.
To earn at least $250 a week, we can set up the inequality as:
50m + 30s ≥ 250
This inequality ensures that the combined earnings from tutoring math and Spanish is greater than or equal to $250.