Answer:
x=4
Step-by-step explanation:
9x-9=27
Add 9 to each side
9x-9+9=27+9
9x = 36
Divide by 9
9x/9 = 36/9
x = 4
keeping in mind that 250 days is not even a year, since there are 365 days in a year, assuming so, then 250 days is really 250/365 years.

Answer:
e. 1/(49n² +7n)
Step-by-step explanation:

Simplifying
8a + 12b = 92
Solving
8a + 12b = 92
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-12b' to each side of the equation.
8a + 12b + -12b = 92 + -12b
Combine like terms: 12b + -12b = 0
8a + 0 = 92 + -12b
8a = 92 + -12b
Divide each side by '8'.
a = 11.5 + -1.5b
Simplifying
a = 11.5 + -1.5b