1 (a) 11.96 (b) 58.32 (c) 2.29 (d)
2 
3 
4 1500000
5 (a) 
(b) gradient = 2/7 (c) D(-3, 2)
6 0.04, 1/4, 4/10, 0.404, 41%
7 64 degrees
8 (a) & (b) 
(c) 53 or 54
9 Plant A by 3 cm
10 16000 miles ( each has been used for 4/5 of the total miles)