Expressions by combining terms. Simplify the
1. -2(x 3) + 4x
2. 4x - 3+ 6 + 7 – 10x
3. (6a + 3x - (4a - 7x)
4. (15x – 3y) + (-12x - y)

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Which one ? is the answer and how to find this answer