Night 1-
               Wren 12
               Jenni 4
Night 2-
               Wren 16
               Jenni 9
Night 3-
               Wren 20
               Jenni 14
Night 4-
               Wren 24
               Jenni 19
Night 5-
               Wren 28
               Jenni 24
Night 6-
               Wren 32
               Jenni 29
Night 7-
               Wren 36
               Jenni 34
Night 8-
               Wren 40
               Jenni 39
Night 9-
               Wren 44
               Jenni 44
It would be 9 nights.
Graph using (x) and (y), Wren being (x) and Jenni being (y)
        
             
        
        
        
Answer:
(2,3) and (7,10)
Step-by-step explanation:
Use the slope 5/7 to get to a new point by moving up 5 units and moving to the right 7 units.
 
        
             
        
        
        
Answer:
The maximum volume of space that 1,000 BTUs will cool is 400 cubic foot.
Step-by-step explanation:
Given : A total of 1,000 BTUs are needed to cool a space. If 2.5 BTUs are needed to cool 1 cubic foot of space.
To find : What is the maximum volume of space that 1,000 BTUs will cool?
Solution : 
Applying unitary method,
2.5 BTU are needed to cool 1 cubic foot of space.
So, 1 BTU are needed to cool  cubic foot of space.
 cubic foot of space.
Then,1000 BTU are needed to cool  cubic foot of space.
 cubic foot of space.
i.e. 1000 BTU are needed to cool 400 cubic foot of space.
Therefore, the maximum volume of space that 1,000 BTUs will cool is 400 cubic foot.
 
        
             
        
        
        
Answer:
From the origin, move 0.5 unit to the left along the x-axis and 1 unit vertically down, and place the point.
Step-by-step explanation:
hope this helps! :}