Answer:
The number of children attending = 324
The number of adults attending  = 176.
Step-by-step explanation:
Here, the total number of people attending = 500
Let us assume the umber of children attending the breakfast = m
So, the number of adults attending the breakfast = 500 - m
Cost of ticket for each children  = $12.95
So, the cost of m children's tickets = m x ( Cost of 1 children ticket)
= Â m x ( $12.95) Â = 12.95 m .... (1)
Cost of ticket for each adult  = $17.95
So, the cost of (500 -m) Â adults's tickets
= (500 - m) x ( Cost of 1 adult ticket) Â Â = (500 -m) x ( $17.95) Â
 = 8,975 - 17.95 m   .... (2)
Now, the total earnings from the total ticket sold = $7355
So, The earning from ( Adult's + children's tickets) Â = $7355
⇒  12.95 m  +  8,975 - 17.95 m = $7355
or, - 5 m = 7355 - 8975 = Â -1620
or, m = 1620/5 = 324
⇒  m =324
Hence the number of children attending = Â m = 324
The number of adults attending = 500 - m = 500 - 324 = 176.