Answer:
The answer is J, 3x.
Step-by-step explanation:
Hi. I will help. Work is shown below.
x grapefruit = $4
y grapefruit = $12
How do we get from 4 to 12? We multiply by 3. Since we multiply by 3 on one side, we have to do the same to the other side, so 3 times x. That's 3x. Therefore, the answer is 3x.
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