Question
One watermelon cost 4 times as much as one starfruit. Mrs Zhang bought 3 watermelons and 4 starfruits for $36.10. How much would 10 watermelons and 7 starfruits cost? Express the answers to 2 decimal places.
3 m

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One watermelon cost 4 times as much as one starfruit. Mrs Zhang bought 3 watermelons and 4 starfruits for $36.10. How much would 10 watermelons and 7 starfruits cost? Express the answers to 2 decimal places.