express 2/-7 as a rational number with denominator (a) 42 (b) -28
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Step-by-step explanation:
The ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three types based on the nature of the cell walls. Parenchyma cells have thin primary walls and usually remain alive after
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Answer:
-12/42 and 8/-28
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