Solution:
Let each pond of jelly beans cost $x.
and each pond of almonds cost $y.
Then we can write


Now solve these two equations together using substitution we get


Hence each pond of jelly bean cost 1.25$
Each pond of almond costs 2.25$
Answer: B: (1-5x²)³, all real numbers
Step-by-step explanation:
The notation
is called function composition, which is where you pass one function in as the value of another function. In other words,
.
Since we have the values for f(x) and g(x), let's plug them in.

Hence, the best answer choice is B, as all real numbers would work and it is the cube of 1 - 5x².
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