The question can be solved as follows:

Hence the value of the given expression in scientific notation is expressed as:
16 I think is a rational number
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Answer:
7×7=49
Step-by-step explanation:
Is means equals and times means multiply
7×7=49
True
7−7=49
7-7=0 False
7+7=49
7+7 =14 False
49÷7=7
True but this is not the equation described above
7×7=48
49False