D+F=N: n is the variable (the sum).
Answer: The students did not do anything wrong, they were right
Step-by-step explanation:
3:4 is divisible by 9:16 and by 18:64
Make a proportion to get the answer the proportion will be

to give you the answer of 37.5
The answer is 7.07 times, with rounding, still 7.07.
(0, 9) represents the y-intercept of the graph.
Since the slope is 1/3, this means that y will rise 1 for every 3 that x runs.
The points that can be used to make a line in this graph are (3, 10) and (6, 11).