Elect the symbol = (equal to) or ≠ (not equal to) to make the expression true. {0} ? { }

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

How can constraints be used to model a real-world situation?