You would have to use an equation. The equation should be 12n+16n=1.5
When you found your answer, you should then use that decimal amount to "times" one hour to get the time. I am pretty sure that this is correct.
Answer:

Step-by-step explanation:
Start with:

Add
to both sides of the equation:

Divide by the coefficient of
, which is
:

We are given expression:
.
Square root in exponent form is power
.
Therefore,
.
Now, replacing square root of 16 by
in original expression we are given, we get
.
Therefore,
<h3>

= 16 in simplest form. By the Power of Power rule,

. So,

must equal

in radical form.</h3>