Answer:
only the third one
Step-by-step explanation:
The slope is -4. This is because of slope intercept form, y=mxtb. M= the slope so the slope in this case is -4
The equation you can use to solve the problem is;
50/30 = 300/x
Next Cross Multiply
50x = 9000
x = 9000/50
x = 180
The building's shadow is 180 feet tall
