Answer:
A) [tex]8+11+14+17+20+23;93[/tex]
Step-by-step explanation:
[tex]\[ \sum_{k=2}^{7} 3k+2\\ \\= [3(2)+2]+[3(3)+2]+[3(4)+2]+[3(5)+2]+[3(6)+2]+[3(7)+2]\\\\=8+11+14+17+20+23=93[/tex]
