Answer:
Your answer is 4x.
Step-by-step explanation:
Add 2+2
Combine your x's (like terms)
then you got 4 from 2+2
Add the leftover x so it makes 4+x then add it will give you 4x.
Answer:
hour 3 to hour 4
Step-by-step explanation:
that is where the slope is the least steep
I believe it is proposition