15 cookies burned because if you Turn

into a decimal then multiply it by 20 you get 15 and thats your answer.
Answer:

Step-by-step explanation:
Given

Required:
Simplify
We start by opening the bracket


Collect Like Terms

Hence, the equivalent expression is 
Answer:
A= 100+20h B=40h
Step-by-step explanation:
A=100+20h
B= 40h
The amount of decrease is $12.00 :$72.00 - $60.00 = $12.00
you then divide the amount of decrease by the original price to find the percent decrease:
$12.00 ÷ $72.00 = .166666... = 16.7%