Question

Please help me with 3-15 and please explain

Answer 1

3. -17 * 3 = -51
6. 117/ -1 = -117
9. 63/ -21 = -3
12. (-3) * {7 * -2)} = -3 * -14 = 42
15. -15 * -3/ -9 = -45/-9 = 5

Hope this helps