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linear equation in one variable
The variable resistor on white background. rheostat. potentiometer.
A tropical variable lizard (Calotes) under the canopy of a rain forest among ferns. The island of Borneo. Malaysia
A South Asian man calculating monthly household expenses. Cost reduction, budget and financial planning concept, selective focus on the hand.
Female artisan running small business analyzing bills and receipts while standing at table in ceramic art studio, doing pottery cost analysis, calculating fixed and variable costs of small business

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