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<?php

    $price = 10;
    $tax = 20;
   
    function calcSalesTax($price, $tax = 50){
        $total = $price + ($price * $tax);
        echo "<Br />(Function Call) Price: \t$price and Tax: \t$tax";
        echo "<Br />Total cost: \t$total";
    }

    echo "<Br />(Default) Price: \t$price";
    calcSalesTax($price);
   
    echo "<Br /> <Br />(Value Passed) Price: \t$price and Tax: \t$tax";
    calcSalesTax($price, $tax);
   

?>

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