The length of a rectangle is 3 times its width. If the width of the rectangle is 5 inches, what is the rectangle's area, in square inches? Choose the correct answer:
A) 30 square inches  B) 75 square inches  C) 68 square inches  D) 89 square inches  E) 92 square inches
If the width is 5 in and the length is 3 times the width, then the length is    3 * 5= 
<gadget id="calculator"> 3 * 5</gadget>
<output>15</output>
15 in   The area is given by     5 * 15= 
<gadget id="calculator">  5 * 15</gadget>
<output>75</output>
75 square inches   correct answer 75 square inches
<result>B</result>
The length of a rectangle is 3 times its width. If the width of the rectangle is 5 inches, what is the rectangle's area, in square inches?