Multiply or divide normally. Whenever the signs are different it’s always gonna be a negative.
Answer: 
Step-by-step explanation:
Given
Propane produced heat energy of 
The volume of the tank is 
The energy produced by this propane tank is

Answer:
True because 1/2 an hour is 30 minutes.
Step-by-step explanation:
Answer:
obj
Step-by-step explanation:
Answer:
1 2/3
Step-by-step explanation: