Question
One jackfruit cost 4 times as much as one mango. Mrs Zhang bought 3 jackfruits and 2 mangoes for $20.90. How much would 7 jackfruits and 10 mangoes cost? Express the answers to 2 decimal places.
3 m

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One jackfruit cost 4 times as much as one mango. Mrs Zhang bought 3 jackfruits and 2 mangoes for $20.90. How much would 7 jackfruits and 10 mangoes cost? Express the answers to 2 decimal places.