Answer: Choice C

Graph with filled in circles at d = 0 and d = 2, shading in between
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Explanation:
d = amount downloaded in gigabytes
The smallest amount is d = 0. We cannot download a negative amount of data, so this is why d = 0 is the smallest.
The largest amount allowed is d = 2. This is the cap that the ISP has set up.
So basically d can be anything between d = 0 and d = 2, including both endpoints. This means 
We use filled in circles for both endpoints to show to the reader "include these endpoints". Shading is done in between to show the entire solution set of possible d values. For instance d = 1 is in that region so it is possible to have this solution. Something like d = 4 is outside the region and not possible.
First, you can add up 4+2 to get 6 because they’re both rates.
Next, divide 18 by 6 and you get 3.
So, it will take three hours for the boys to meet up.
One way to check your answer is to multiply 4x3=12 and 2x3=6 and 12+6 is 18.
Answer:
m = 3
n = 14
p = 2
Step-by-step explanation:
Given:

We need to find the values of m, n, p
Solution:
We will first solve the L.H.S
L.H.S = 
Now we will first make the denominator common by taking L.C.M

Now the denominator is common hence we will subtract the numerators.
L.H.S 
Now Comparing the the value of L.H.S with R.H.S we can say that;

m = 3
n = 14
p = 2