IDNLearn.com: Your reliable source for finding precise answers. Receive prompt and accurate responses to your questions from our community of knowledgeable professionals ready to assist you at any time.
Answer: 54
Step-by-step explanation: if each rock weighs 12 kilo and there are 4, you multiply 4 and 12. Then you add the other six that he lifted above his head that is the box. You should get 54