Answer
The first six terms are:
$200, 140, 80, 20, -40, -100$
Work Step by Step
The next five terms f the sequence can be found by adding the common difference to obtain:
$a_1=200
\\a_2=200+(-60)=140
\\a_3=.140+(-60)=80
\\a_4=80+(-60)=20
\\a_5=20+(-60)=-40
\\a_6=-40+(-60)=-100
