Answer: C. 8 + 11 + 14 + 17 + 20 + 23; 93
Step-by-step explanation:
Here the given expression is,
[tex]\sum_{k=2}^{7} (3k+2)[/tex]
[tex]=(3\times 2 + 2) + (3\times 3 + 2) + (3\times 4 + 2)+(3\times 5 + 2)+(3\times 6 + 2)+(3\times 7 + 2)[/tex]
[tex]= (6 + 2) + (9 + 2) + (12 + 2)+(15 + 2)+(18 + 2)+(21 + 2)[/tex]
[tex]= 8 + 11 + 14 + 17 + 20 + 23[/tex]
[tex]= 93[/tex]
Thus, Option C is correct.
