Answer:
The length will be letter C, 50 m
Answer:
(a) 
(b) Domain:
<em>(See attachment for graph)</em>
(c) 
Step-by-step explanation:
Given



Solving (a): A function; l in terms of w
All we need to do is make l the subject in 
Divide through by 2

Subtract w from both sides


Reorder

Solving (b): The graph
In (a), we have:

Since l and w are the dimensions of the fence, they can't be less than 1
So, the domain of the function can be 
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To check this
When 



When 


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<em>See attachment for graph</em>
<em></em>
Solving (c): Write l as a function 
In (a), we have:

Writing l as a function, we have:

Substitute
for l in 
becomes

Answer:
B. 0.4
Step-by-step explanation:
5 + 4 + 3 = 12 balls
5 blue / 12 balls = 0.4
<h2>
Answer:</h2><h2>40 minutes</h2>
Step-by-step explanation:

Tyra used 6 kilograms total to fill up all bird feeders.