<h3><u>
The value of x is equal to 21.</u></h3>
13 = 5 + 2(x - 17)
<em><u>Distributive property.</u></em>
13 = 5 + 2x - 34
<em><u>Add 34 to both sides.</u></em>
47 = 5 + 2x
<em><u>Subtract 5 from both sides.</u></em>
42 = 2x
<em><u>Divide both sides by 2.</u></em>
x = 21
The answer in which you were looking for is C. 106
The original equation log 0.0001 = -4 assumes the base of the logarithm is 10, so the exponential form is 10^ -4 = 0.0001
This means that for every inch there is 16 feet. 1 and 1/2 inches is also 1 + 1/4 + 1/4 inches, or (to scale) 16 + 4 + 4 feet, equaling 24 feet.
TL;DR 24 feet
.81 and 2.63 if you divide them
