What's New Read and understand the problem. Michelle comes from school with a heavy heart because of Math homework. Her eider sister gives her a helping hand. She has seen the following: Perform the indicated operations. 17 15 4 3 + 18 + 2 * 3 2) 7 (12 - 2) + (3 + 2) 3) (18 - 12) * (16 + 2) 5​