SA solutions: 
Midterm: 
42) Fig.1.4 in textbook, also look at your sky chart
43) Fig.6.20 in textbook
44) similiar to Fig.2.5, just different angle
(39degrees for NCP) 
45) F, T
46) Except b)
47) Read your notes! 
48) 3.03 AU, 0.04 arcsec
 If it still use P in Earth years, a in AU, no. The constant k changes...