Answer:
Percent of decrease 
Percent of increase
Increase percent
decrease percent
Step-by-step explanation:
<u>Decreasing :</u>
Initial price
Decreased price 
Total decrease 

Percentage decrease 

<u>Increasing :</u>
Initial price 
Increased price 
total increase 

Percentage increase 
A. 72÷9÷2 = 8÷2 = 4
b. (18 ÷ 6) ÷ 3 = 3 ÷ 3 = 1
c. 45 ÷ 5 ÷ 3 = 9 ÷ 3 = 3
d. 144 ÷ (12 ÷ 2) = 144 ÷6 = 24
Answer:
-18
Step-by-step explanation:
Addition. Hope this helped
Answer:
2
Step-by-step explanation: