I'm not sure if that's the correct method of finding that (it could be, I was just never shown that kind of method). What I did was multiply everything out, that way you have two numbers vs two equations. Then add those two numbers and turn that into scientific notation.
Answer:
300
Step-by-step explanation:
If Yarmouth is 6.5C and Sydney is 8C colder you would just subtract.
6.5-8=-1.5C
Answer:
dollar
Step-by-step explanation:
Euro is equal to $
The agreed fee is Euro 
Fees in dollars
dollar
