QUES: The construction of the light is solid and with 3 batteries it also has a good runtime

correct the punctuation.

CORRECTED: The construction of the light is solid and with 3 batteries it also has a good runtime.

QUES: Online play saves travel expense and room and food payouts

correct the punctuation.

CORRECTED: Online play saves travel expense and room and food payouts.

QUES: A popular adage says that one dissatisfied customer will tell about hisher experience ten other customers

correct the punctuation.

CORRECTED:
A popular adage says that one dissatisfied customer will tell about his/her experience ten other customers.