var apple = 100;
var grape = 150;
/* 以下に「合計: 648」と表示されるよう課題処理を追加 */
var tax_rate = 0.08;
var sum;
sum = ( apple * 3 + grape * 2 ) * ( 1 + tax_rate);
document.write('<p>合計： ' + sum + '</p>')
js_cc_01_practice_operator_intermediate
---------------------------------------
A [Pen](https://codepen.io/m-shinkawa/pen/GGJJmp) by [m-shinkawa](https://codepen.io/m-shinkawa) on [CodePen](https://codepen.io).
[License](https://codepen.io/m-shinkawa/pen/GGJJmp/license).
js_01_practice_operator_intermediate
------------------------------------
A [Pen](https://codepen.io/m-shinkawa/pen/GGJJmp) by [m-shinkawa](https://codepen.io/m-shinkawa) on [CodePen](https://codepen.io).
[License](https://codepen.io/m-shinkawa/pen/GGJJmp/license).