6. Find the first four terms of the sequence an = 2n - 1.

A. 1,3,5,7
B. 1,3,5,8
C. 1,3,5,9
D. 1,3,5,10

7. What rule will correctly describe the sequence: 2,5,10,17,26,37,...?

A. n+1
B. 2n
C. 2n+1
D. n²+1

8. Glenn bought a car for Php 600,000. The early depreciation of his car is 10% of its value at the start of the year. What is the value after 4 years?

A. Php 393,660
B. Php 378,000
C. Php 437,400.00
D. Php 438,000

9. A sequence whose consecutive terms have a common difference.

A. Arithmetic Sequence
B. Fibonacci Sequence
C. Geometric Sequence
D. Harmonic Sequence

10. Which of the following is not an arithmetic sequence?

A. 4,7,10,13,...
B. 100,98,96,94,...
C. -2,-6,-10,-14,...
D. -4,-3,10,17,...​