Solve each system of equations below.
a,
y = 3x +1
x+2y=-5

What graph correctly matches the equation y equals two negative x

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

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?