Answer:
x=6
Step-by-step explanation:
Since y=7 when x=2, we can from here simplify and see that y=3.5 when x=1. If y=21, then we multiply 7 by 3 which is 21, and since we must keep a proportion, we must multiply 2 by 3 and get 6 as the answer.
Answer:
0.5
Step-by-step explanation:
D is correct
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Answer:
45
Step-by-step explanation: 15x3
Answer:
Step-by-step explanation:
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