From question 4, we know that the cost of bowling is $20 per hour, and assuming a game of bowling takes approximately an hour, the cost of one game of bowling is $20.
Assuming the cost of one game of laser tag is $15, the cost of five games of laser tag would be:
5 x $15 = $75
Therefore, if the group decides to play only one game of bowling, they would have $80 - $20 = $60 left for laser tag. Since $60 is greater than the cost of five games of laser tag ($75), they would not have enough money to play five games of laser tag.