C. 4<=C<=12
Hope that helps
Answer:
A. Diego's answer is not correct.
B. 0.00375
Step-by-step explanation:
a. As I counted the thickness of the paper I realized that 0.015 inches is way too think because if we stacked 500 of those it would be 7.5 inches tall.
b. 1.875 ÷ 500 = 0.00375. so that is your answer
12.9986 would be the answer from a calculator but I'd say it's 12.9. Hope this helped!
Option D: Two irrational solutions
Explanation:
The equation is 
Subtracting 6x from both sides, we have,

Solving the equation using quadratic formula,

Simplifying the expression, we get,

Taking out the common terms and simplifying, we have,

Dividing by 3, we get,

Hence, the equation has two irrational solutions.