1 (a) £1 (b) 50p (c) £7
2 £127.45
3 (a) drawing (b) 8, 14, 17, 50 (c) d = 3s + 2 (d) 33
4 90
5 drawing
6 (a) -2, -6 (b) -1, 3, 1, -2 (all left to right and top to bottom on diagrams)
7 Leading Mortgage by £198.40
8 62.5 metres ( to 3 sf)
9 (a) -8, 1, 10 (b) graph ( line crossing y-axis at (0,1) going 1 along and 3 up)
10 (a) 22° (b) 46°
11 (a) 2010 cm (b) 33.5 cm/sec
12 83.3 metres
13 x = 5.6 ; 27.6 metres required so 28 metres is enough
14 (a) 14a - 15 (b) x = 8/3 or 22/3
15 (a) accurate plot (b) Port B is closest (c) 230° at a distance of 32 km
16 3.75 metres
17 (a) 36 (b) 1480 cm2 (to 3 sf )
18 18 km
19 11250 cm3 ( or 11250000 mm3 )