Answer:
B
Step-by-step explanation:
Getting info from multiple places is better
Answer:
x>-1
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
Given two fractions
and 
Factor the denominators of both fractions:

You can see that two digits 2 are the same in both denominators and there are two more factors: 2 in number 8 and 3 in number 12.
Thus, the least common denominator for
and
is

Answer:
x=1
Step-by-step explanation:
if it is truly 9^(x-1)=27^(x-1), then you dont really need to use the quadratic fromula.
Answer:
2/7 is already in the simplest form. It can be written as 0.285714 in decimal form (rounded to 6 decimal places).