The literal equation for x is
given that 
The subject of a formula is a way of representing a variable in terms of other variables.
Given the equation

Factor out the common variable x

Divide both sides by 4+5y

This shows that the literal equation for x is 
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Answer:
b
Step-by-step explanation:
Answer:
-2,-6,0,4,8
Step-by-step explanation:
-2 is the least because all other numbers are greater than it(i.e any negative number is less than 0)
There exists the same question from other source that has the image of the drawing. Attached to this answer is the image.
To solve this, first we have to assume ratios.
Real Height / Shadow = 56 / 49
Real Height / 28 = 56 / 49
49 * h = 56 * 28
49h = 1568
Then, we have to divide both sides by 9
h = 32
Therefore, the obelisk is 32 ft
C is correct answer to this question.