The simplified expression of
is 
<h3>How to simplify the expression?</h3>
The expression is given as:

Divide 162 and 2 by 2

Take the square root of 81

Apply the quotient rule of indices

Evaluate the difference

Take the square root of x^18

Hence, the simplified expression of
is 
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Answer:
1.5 hours
Step-by-step explanation:
The answer is y=(1/3)x+7, use y=mx+b and solve for b where m is slope
Answer:
fog(x)= -4x+11
Step-by-step explanation:
Here,
f(x) = 2x - 3
g(x) = 2x - 4x +7 = -2x+7
fog(x)= f(-2x+7)
= 2(-2x+7)-3
= -4x+14-3
= -4x+11