Can you please help me with this.

Step-by-step explanation:

The equation for an arithmetic sequence is

 where n is the position of the number in the sequence, a1 is the first number in the sequence, and d is the difference between the numbers in the sequence.

Our first number is 2, so a1 = 2; to get from 2 to 5 we add 3, to get from 5 to 8 we add 3. That means that d = 3. Filling in the standard form of the equation:

which simplifies to

and a bit more to

(which should tell you that arithmetic sequences are lines!)

Finding the 13th number simply requires that we replace n with 13 and solve:

so

the correct answers i think are b. and d.

give me brainliest if it is correct!