What is the simplest form of (4x3 + 6x – 7) + (3x3 – 5x2 – 5x + 9)? A. 7x3 – 5x2 – x + 2
B. 7x3 – 5x2 + x + 2
C. 7x3 + x2 – 5x + 2
D. 7x6 – 4x2 + 2

1. are the triangles similar and if so why? what is the value of x? show your work.

Icould really use some with this question.

The coordinate grid shows a pentagon. the pentagon is translated 3 units to the right and 5 units up to create a new pentagon. what is the rule for the location of the new pentagon?