21. Given that a = 2 and b = 3, evaluate 
A. 28
B. 8
C. −7
D. −28
22. 
Which of the following is illustrated on the number line above?
23. 
In the diagram above, A is the centre of the circle with radius 20 cm. If angle BAC is 90°, find the perimeter of the shaded sector. [Take π = 3.14]
A. 7.14 cm
B. 31.8 cm
C. 40.0 cm
D. 51.4 cm
24. 
In triangle ABC, |AB| = |BC| = 5 cm and |AC| = 8 cm. Find |BD|
A. 3 cm
B. 4 cm
C. 9 cm
D. 33 cm
25. Write ¢35,632.00 correct to the nearest thousand cedis.
A. ¢40,000.00
B. ¢36,000.00
C. ¢35,600.00
D. ¢35,000.00
26. Solve for x if 
27. Evaluate 
28. A boy walked 7 km on a bearing 060°. which of the following diagrams shows his direction?
A. 
B. 
C. 
D. 
29. In the following diagram G1OH1 is an enlargement of triangle GOH with scale factor k. If |GG| = 5 cm, |GO| = 2 cm and |G1H1| = 1 cm, what is the value of k?
30. If 14x = 9ten find x.
A. Five
B. Eight
C. Seven
D. Six