mock paper ans

Mock Paper(2) Answers ( i will upload worked solutions for all mock papers before thurs paper) please tell your classmates about this!

1. 20.2
2. 43
3. 3
4. 14cm
5. x/y = 1
6. (2a-1)(b+5x)
7. a) x= 6 b) x = 8/7 c) x = 5/4
8. a) 1.0457 ( 4 DP) b) 0.04690 ( 4 SF)
9. a/2 = -1
10. -7/6
11. 2x - 2 - y = -6
12. skirt = $49
13. x = 42 degrees
14. 
    a) 110 degrees ( int. angles)
    b) 70 degrees ( int. angles)
    c) 230 degrees ( angles at a point)
15. yr 2168