The sequence is dividing by 1.5. When you divide 81 by 1.5 you get 54. When you divide 54 by 1.5 yippy get 36.
87 for t-shirts and 243 for sweatshirts, the total cost is 330
1/2 x 2= 1
1/8 x 2= 1/4
3/8 x 2= 3/4
3/4 x 1/4 = 3/16
3/16 x 1 = 3/16
YOUR ANSWER IS 3/16 dry ingredients
