27-18= 9
9/18 x100= 50
There was a 50% increase in grey wolves
Answer:
Jada used 1/2 of the pancake mix in the box
Step-by-step explanation:
we know that
-----> represent the 100% of the box
so
by proportion
Find what fraction represent 
First convert mixed number to an improper fraction

Convert the percentage into fraction

The answer is David, because $20 is the biggest
= 8xy - x -2xy + 3x
= 6xy + 2x ..............combine like terms
answer
3. 6xy + 2x