Answer:
B and the first d and second one.
Step-by-step explanation:
The age is a big factor and b can showing the preference per age
https://www.wolframalpha.com/
Answer:

Step-by-step explanation:
If you have the same denominator, you can just subtract the numerators normally and carry over the denominator.
Answer:
You draw it on the graph right
Answer:
The answer is 24:42
Step-by-step explanation:
All you have to do is multiply 7 by 6 because for every red marbles there are 6 marbles.
Hopes this helps!!