You would want to divide 30 by 2/3 so you would do 30/1 times 3/2. This method is known as keep change flip or kcf (Kentucky Chicken Fried is what some people say) your final answer should come out to 90/2 which simplified is 45. Hope this helped
120 inch just multiply 2 number
16 cupcakes is the answer
Answer: (bc+2ac+3ab)/(abc)