Here, I'll do the first one for you.
When they are talking about a number, use "x".
Since it says twice a number, you say 2x. Or 3x for three times the number
2x+12=3x-31
Then use algebra to find x. Get the numbers on one side and all the x's on the other.
2x+12+31=3x-31+31
2x+43-2x=3x-2x
x=43
Now do the rest on your own!
2/6 is equal to 4/12 and 3/4 is equal to 9/12 so 3/4 is larger
Answer: New function is 
Step-by-step explanation:
- A dilation is a transformation that creates an image using a scale factor that has the exactly same shape as the original, but have a different size.
The given function : 
We know that any function y= f(x) will become y=k f(x) after dilation of k units on the x, where k= scale factor for dilation.
Here, the given scale factor = 2 i.e. k=2
Then, the new function will be :

Hence, the new function is 
Answer:
a. no information provided
b. 24 students as mentioned
c. the problem is... there isn't any response given to compare with the students surveyed.
Step-by-step explanation:
a class of 24 students was asked to identify a team sport in which they have participated their responses are shown in the line plot
a. how many total responses
b. how many students surveyed
c. give a possible explanation as to why the answers to parts a and b are different