Simplify.
1. 8x - 9y +16x +12y
2. 14y + 22 - 15y2 + 23 y
3. 5n-(3-411)
4. -2(116 - 3)
5. 10g(16x +11)
.
6. - (5x-6)
7. 3(18z - 4w) + 2(10z - 6w)
8. (8c + 3) +12(4c - 10)
9. 9(x - 2)-3(9x2 - 3)
10. - y - x) + 6(5x + 7)

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

Three times the sum of a number and seven is negative thirty-six. what is the number?