Mathematics, 19.03.2021 04:50 puppy4151

Sarah and Katie are selling brownies and cookies for a school fundraiser. Sarah sells 5 brownies and 8 cookies and earns $16.50. Katie sells 7 brownies and 4 cookies and
earns $19.50. If Sarah and Katie are charging the same amount of money for brownies
and cookies. What is the cost of a brownie and the cost of a cookie?
help plz!

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