Combine like terms:
4a + 3 – 
The first two like terms are 4a and 9a because they both have the same variables. To combine them, we simply add them together.
4a + 9a = 13a
The second set of like terms are 3 and 1. They are alike because they both do not have any variables. To combine these two together we add them as well.
3 + 1 = 4
The final set of like terms is
The final equation, after we have combined all the like terms, is…
13a + 4
This post was posted by a realtor. It seems to show that the first brand thought of by buyers or sellers of homes is Remax, yet the brand producing these results is in fact Remax itself. We don’t know the sample of this survey, but I am guessing it was mainly Remax customers or employees based on the results and producers of the survey. The influencing factors for this survey could have been bias, considering the company who made the survey won. Timing, time, use of language and privacy are also possible influencing factors. In my opinion, this is not a reliable survey, considering there was probably not enough variety of people answering the question. It is most likely not a valid survey, since there are so many possible influencing factors.
The population of this survey is everyone in Canada. In my opinion, they used a sample because it would be almost impossible to survey everyone in Canada. I think it was a stratified sample, which means they split the population into multiple groups, males and females depending on their age and randomly asked a certain number of each.
Some influencing factors could have been timing, depending on that week if it was good or bad, time, because they could have been in a certain mood that would affect their answer (for example, tired and not willing to answer properly) and privacy, since they minght want to seem less stressed than they are in front of their friends or others.
My predictions of the population using the results of this survey is that people aged 35-44 experience the most days that are the most stressful. I can also predict that females usually find thier days more stressful than males of the same age.
Survey source: http://www.statcan.gc.ca/pub/82-625-x/2014001/article/14023-eng.htm
