Answer: 18 napkins
Step-by-step explanation: if the width is 12 INCHES and the length is 6 YARDS then you’d convert 12 inches into 1 foot and 6 yards into 18 feet.
( 1 yard = 3 feet ) ( 12 inches = 1 foot ) after that you’d multiply 18 x 1 which equals 18. This is the way my math instructor taught me.