Answer:

Step-by-step explanation:
We want to evaluate the following limit.

We need to recall that, limit of a sum is the sum of the limit.
So we need to find each individual limit and add them up.

Recall that, as
and the limit of a constant, gives the same constant value.
This implies that,

This gives us,

The correct answer is D
20 seconds
i feel like that is right
Answer:
C.
Step-by-step explanation:
Jack's rate = 28/2 = 14 boxes/hour
Walter's rate = 36/3 = 12 boxes/hour
Combined rate = 14 + 12
= 26 boxes/hour
26 = 65/t
26t = 65