Edgar eats 18 pretzels a day. If his brother eats 1/2 as many, how many does his brother eat in a week?
His brother eats 9 pretzels a day because 18 / 2 = 
<gadget id="calculator">18/2</gadget>
<output>9</output>
9.
His brother eats 63 in a week because 9 x 7 = 
<gadget id="calculator">9*7</gadget>
<output>63</output>
63.

<result>63</result>