45 is your answer to 56-11
The number of milligrams of aluminum is 400 times the number of milligrams of gold in the body.
<u><em>Explanation</em></u>
Lets assume, the number of milligrams of aluminum is
times the number of milligrams of gold in the body.
The body of a 154 pound person contains approximately 4 × 10⁻¹ milligrams of gold and 16 × 10¹ milligrams of aluminum.
So the equation will be...

So, the number of milligrams of aluminum is 400 times the number of milligrams of gold in the body.
Let f(x) be y.
y = x³ + 3
Switch x and y:
x = y³ + 3
Now you need to isolate y and you would get inverse function.
x - 3 = y³
∛(x-3) = y
Final answer: f ⁻¹(x) = ∛(x-3)
Hope this helps.
Answer:
The first one (A) is the answer I got!
Step-by-step explanation:
The answer is 81 because 27 x 3