Answer:
<u> -54.5%</u>
Step-by-step explanation:
You will have to use this formula

When substituted in you have 
30-66=-36
-36/66= -0.54 (54 repeating)
Then you have to convert this into a percentage, -54.54(repeating) percent
To the nearest hundredth you would round down to<u> -54.5%</u>.
It is a Decrease because it is negatated.
Answer:

Step-by-step explanation:
Isolate the variable by doing operations to both sides of the equation.
The work is shown below:

Both define y, so they are equivalent.
5x-9=2x+6
3x-9=6
3x=15
x=5
Then plug in x into any of the equations
y=2(5)+6
y=10+6
y=16
Final answer: (5,16)
Answer:62 feet
Step-by-step explanation:
1 yard=3 feet
20 yard=20 x 3=60 feet
20 yards=60 feets
20 yards and 2 feets=60 feet + 2 feet
20 yards and 2 feets=62 feet
Answer:
the answer is negative
Step-by-step explanation: