Percent decrease { (original number - new number) / original number....x 100
percent decrease : (75 - 25) / 75....x 100
50 / 75...x 100
0.666 x 100
66.6% decrease <==not sure if u need it rounded ?
Answer: 
Step-by-step explanation:
This is what it is as a mixed number

= 
= 
If you want it written in exponential form it would look like this:

Heinz,Pepsi,Coca-Cola,Kitkat
Answer:
600,000
Step-by-step explanation:
600,000
600,000
600,000
600,000
'what number' indicates an unknown value we can represent with 'x'
'is' indicates an equal sign.
25% = 0.25
'of' indicates multiplication.
x = 0.25 * 180
x = 45