Answer:
d= -5
Step-by-step explanation:
Divide 309 by 3. You should get 103 (hamburgers). if you multiply that by 2 you will get 206 (cheeseburgers). Add the two together you get the total which was 309 originally.
103 hamburgers and 206 cheeseburgers.
It would be 0 till the end of the month because that’s where it started from and when it’s going to end
13.) 2.6 + 10.4 = x
14.) x = 13 liters
15.) The solution represents how much water the container now have.
(I’m sorry if my english is bad, but I hope this helps!)