Answer:
The answer is letter D
Step-by-step explanation:
In the graph, it clearly shows that 2 minutes is equal to 30 revolutions. If the question is asking you to double it, it would be 2 minutes equaling 60 revolutions. If you multiply the first number of each mutliple choice answer by 30, you should get the number to the right of it. The only one that follows this rule is letter D.
