13. What is the next value? 2 3 E 4 5 I 6 8 a. O b. 8 c. M d. N

d. N

Step-by-step explanation:

The pattern seems to be two numbers that add to given an index into the alphabet.

2+3 = 5; the 5th letter of the alphabet is E

4+5 = 9; the 9th letter of the alphabet is I

6+8 = 14; the 14th letter of the alphabet is N

Add 2 and 3 to get 5, E is the 5th letter in the alphabet.

Add 4 and 5 to get 9, I is the 9th letter in the alphabet.

Add 6 and 8 to get 14, N is the 14th letter in the alphabet.

The answer would be d. N