Question

a cab company charges rs 15 per km with an initial fixed charge of rs 30. It also offers a cashback discount of rs 25 per trip. savita travels x km by this cab . how much will see pay. frame equation​

Answer 1

Answer:

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Answer 2

Answer:

Physical changes in burning candle On heating, candle's wax melts, it is a physical change. Since, it again turns into solid wax on cooling. The change is reversible. Chemical changes in burning candle The wax near to flame burns and gives new substances like carbon dioxide, carbon soot, water vapours, heat and light.