Asap i give brainest and 10 pt. (already overdue)

answer the question below

Use set buikder notation to represent the following set: {, -2, -1, 0}

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.