Answer:
C. 
Step-by-step explanation:
From the graph of the function, we can see that the domain of the function is
the range of the function is 
Consider the parent function
The domain of this function is
the range of this function is 
The function
has
the domain

and the range

All other options have different domain, or the range, or both the domain and the range.
Use the formula for the volume of a cylinder to work out how much wax you need to make one candle.
π×5²×15 = 375π
Then divide the amount of wax you have by the amount of wax you need to produce one candle to work out how many candles you can make.
4500 ÷ 375π = 3.82
However, you can't produce 82% of a candle, so you have to round down to 3 candles.
Answer:
39 in.
Step-by-step explanation:
As it's a regular hexagon all sides are congruent.
Therefore
7x + 4 = 8x - 1
4 + 1 = 8x - 7x
x = 5.
So the required length is 7(5) + 4 = 39 in.