Every 6th visitor to a museum gets a free bumper sticker. Every 12th visitor to the museum get a free key chain. Which visitor each day will be the first one to get both the bumper sticker and the key chain. A: 6th
B: 12th
C: 24th
D: 72th

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?