Express the total cost in algebraic expression — task. Mathematics CBSE, Class 7 New.

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One plate of Jowar roti costs $₹39$ and one plate of Pulao costs $₹20$. If $x$ plates of Jowar roti and $y$ plates of pulao were ordered in a day, which expressions describe the total amount in rupees earned that day?

$39 x - 20 y$
$20 x + 39 y$
$(39 + 20) \times (x + y)$
$39 x + 20 y$

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5. Express the total cost in algebraic expression

Exercise condition: