Answer:
1. 11.2
2. -1.4
3. 12
Step-by-step explanation:
The equation of the line that passes through the points A(8,0) and B(3,7) is

To find the y-intercept, plug into this equation x=0:

Two parallel lines have the same slope, so the equation of the line CD is

This line passes through the point D(5,5), thus

Hence, the equation of CD is

Answer:
108
Step-by-step explanation: