2a+b4.....................
First of all, it is a ratio. I know that for a fact, but not very sure about the candy part. What I think it means is that they are comparing two types of candy.
Answer:
hour 3 to hour 4
Step-by-step explanation:
that is where the slope is the least steep
Answer:

Step-by-step explanation:
n is doubled: 2n
y added: 2n + y
divided by 2: n + 
n subtracted -> final resutl: 
D, or 100/20. its traveling 5 meters per second.