The answer to question 4 is C, (16,20)
Answer:
Always true
Step-by-step explanation:
Given

Required
Determine its type of solution

Collect Like Terms

Take LCM


Multiply both sides by 



<em>Hence, the equation is always true for x = 3</em>
No, that is not a factor to make it not a like term.
The answer is 140 Inches because 4 times 7 is 28, 28 times 5 is 140