Simplify the following expression: 2x − 8y + 3x2 + 7y − 12x

Question options:

3x2 − 14x − y

3x2 − 10x − y

3x2 − 10x − 15y

3x2 + 10x − y

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?