Question 516997
To solve this problem, you need to set up equations using what you know. First you know that one person paid $1.77: A = 1.77. Next you know that there are 9 people in total who paid $38.81 and the other 8 all paid the same amount: A + 8B = 38.81.  Now plug the first equation into the second equation for A:
A + 8B = 38.81
1.77 + 8B = 38.81
8B = 37.04
B = 4.63.  So each of the other friends payed $4.63.