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.
Well 40 times 6 is 240 which means that you don't have to round.
Answer:
its A!
Step-by-step explanation:
Answer:
m=9
Step-by-step explanation:
11-9m=-70
-11 -11
-9m = -81
divide both sides by -9 and you get m=9