One pair of pants requires 8.5 feet of fabric. Nguyen needs to make 7 pairs of pants for the wedding. He has 3.5 yards of fabric. How many feet of fabric does Nguyen still need for the pants?
Pants = 8.5 * 7 = 
<gadget id="calculator">8.5*7</gadget>
<output>59.5</output>
59.5 feet
3.5 yards = 10.5 feet
59.5 - 10.5 = 
<gadget id="calculator">59.5-10.5</gadget>
<output>49</output>
49.
Nguyen still needs 49 feet of fabric.

<result>49</result>