Write the first five terms of the arithmetic sequence.
-$a_{1}=21, d=7$
A) $21,28,35,42,49$
B) $21,7,56,84,112$
C) $21,7,35,42,49$
D) $7,28,49,70,91$

Question

Quizplus · Accepted Answer

The first term is given as 21, and each subsequent term increases by the common difference, d=7. Thus, the sequence is 21 (first term), 21+7=28 (second term), 28+7=35 (third term), 35+7=42 (fourth term), and 42+7=49 (fifth term).

Write the First Five Terms of the Arithmetic Sequence a1=21,d=7a_{1}=21, d=7a1​=21,d=7

Write the First Five Terms of the Arithmetic Sequence $a_{1}=21, d=7$