Verified answer

a1 = 5

r = 6 - 5 = 1

a30 = a1 + 29r

a30 = 5 + 29.1

a30 = 34

Sn = (a1 + an).n/2

S30 = (5 + 34).30/2

S30 = 39.15 = 585

a1=5

r=6-5

r=1

a30=a1+29r

a30=5+29*1

a30=5+29

a30=34

sn=(5+34)/2*30

sn=(39/2)*30

sn=39*15

sn=585

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