Final answer:
The linear equations in this question are y = -3x and y = 0.2 + 0.74x.
Step-by-step explanation:
A linear equation is an equation that represents a straight line when plotted on a graph.
The equation y = -3x is linear because the power of x is 1 and there are no other variables or powers involved.
The equation y = 0.2 + 0.74x is also linear because the power of x is 1 and there are no other variables or powers involved.
The equation y = -9.4 - 2x is linear because the power of x is 1 and there are no other variables or powers involved.
Therefore, the linear equations in this question are A) y = -3x and B) y = 0.2 + 0.74x.