Answer:
The <em>b</em> is the y-intercept.
the <em>m</em> is the slope.
Your round it to 300 so the answer is 300
The answer is 192sq.cm.
REASONING: This would be by multiply the length by the height in order to get the area. 12*19 is equal to 192.
PLEASE MARK BRAINIEST!! Have a good day!