11. If 
find x.
12. Calculate the size of an exterior angle of a regular pentagon.
A. 72°
B. 90°
C. 108°
D. 360°
13. Factorise 
14. Kwame, Atsu and Kojo shared a profit of ¢50,000.00 in the ratio 1:4:3 respectively. How much did Atsu get?
A. ¢62,500.00
B. ¢125,000.00
C. ¢187,500.00
D. ¢25,000.00
15. Use the identity 
to evaluate 
A. 660
B. 6,600
C. 7,718
D. 7,600
16. What is the probability of obtaining a prime number when a fair die is thrown once?
17. The following are the scores obtained by girls in a beauty contest: 12, 16, 19, 14, 17, 8, 11, 19. What is the probability of obtaining a score of 19?
18. Express 25 as a percentage of 75.
A. 300%
B. 100%
C. 50%
D. 33.3%
19. Find the value of M given that 
20. Express 0.0043216 in standard form.
A. 4.3216 × 10−4
B. 4.3216 × 10−3
C. 4.3216 × 10
D. 4.3216 × 103
