Answer: 2
Step-by-step explanation: The value of 1*2 is 2.
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HOWEVER, If we were plugging in these values:
p = 1
q = 2
And solving 2q - p, then our answer would be 3.
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If we were plugging in these values:
p = 2
q = 1
And solving 2q - p, then our answer would be 0.