Can you explain what exactly you need to do because I know how to do this but I need more context
For the first one, you take the original temprature -3.0° and add -5.4° which gives you an answer of -8.4°c :)
for the second you add the amount for breakfast and lunch, then multiply by 7 days
Not with whole numbers, your only options would be
6x4 which would have a perimeter of 20
8x3 p=22
12x2 p=28
24x1 p=50
as for decimals, i don't believe that there would be any but not 100% sure
Answer:
4.8x4=19.2, and then 19.2/4=4.8 feet
Each side would be 4.8 feet
