Answer: r = -5/18
Step-by-step explanation: You solve -3(1+6r)+12=14
-3-18r+12=14 (When distributed)
-18r+9=14
-18r=5
r=-5/18
Answer:
2730
Step-by-step explanation:
We want to determine the greatest common divisor of the elements of the set 
We apply the Fermat's little theorem which states that if p is a prime number, then for any integer a, the number aᵖ − a is an integer multiple of p.
Now,
if p-1 divides 12.
Since the of 12 are 1,2,3,4, 6, 12, the corresponding primes are 2, 3, 5, 7, 13.
Therefore, the gcd of the elements in
and 
2*3*5*7*13=2730
Therefore, the gcd of the elements in set S is 2730.
The wall has an area of 8 * 100 = 800 square feet
So therefore 800/400 = 2 gallons are required the answer is C
The perimeter of a square is equal to the side length times 4.
The equation is P = 4S, with P being the perimeter, and S being a side.
Also, to get the length of a side from the perimeter, just divide the perimeter by 4.
To have it in centimeters, just add cm to the end of your answer!