Answer:
33.3333% decrease
Step-by-step explanation:
Percent change formula: 
, where x is the new value and y is the starting value.
Plug in values and solve:
-33.3333% change, or a 33.3333% decrease.
Theres an app called photomath thats useful for these kinds of problems
You might be thinking of "distribution" or "distributive property"
Example:
2(3x+5) = 2*3x+2*5 = 6x+10
I multiplied the outer 2 by each term inside (3x and 5)
Answer:
a = 4
Step-by-step explanation:
a+8 = 12
a= 12-8
a=4
