Can somebody help me with my packet please :D

Number 1 = 5        Number 2 = 13/12 or 1 and 1/12

Step-by-step explanation:

The properties of triangles states that the third side is no less than the difference between the other 2 sides. So we can subtract B from A in number 1 to get 5. In number 2, we need to convert them both into twelfths in order to find the difference, 2/3 is 8/12 and 1 3/4 = 7/4.  7/4 in twelfths is 21/12. Now we subtract and ignore the denominators, 21 - 8 is 13. You now have 13/12 for number 2.

Hope this helps.

47 - 90 = 43

43 - 180 = x

x = 137