20cm x 30cmx40cm भएको बसको ट्याङ्कीमा कति पेट्रोल अटाउला ? पत्ता लगाऊ। math
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The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?

Write the equation in general quadratic form: plz !