Question
One jackfruit cost 4 times as much as one mangosteen. Mrs Zhang bought 4 jackfruits and 3 mangosteens for $19.20. How much would 7 jackfruits and 5 mangosteens cost? Express the answers to 2 decimal places.
3 m

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One jackfruit cost 4 times as much as one mangosteen. Mrs Zhang bought 4 jackfruits and 3 mangosteens for $19.20. How much would 7 jackfruits and 5 mangosteens cost? Express the answers to 2 decimal places.