Question
One king melon cost 2 times as much as one lemon. Mrs Zhang bought 4 king melons and 2 lemons for $20.80. How much would 5 king melons and 11 lemons cost? Express the answers to 2 decimal places.
3 m

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One king melon cost 2 times as much as one lemon. Mrs Zhang bought 4 king melons and 2 lemons for $20.80. How much would 5 king melons and 11 lemons cost? Express the answers to 2 decimal places.