The table below shows the ticket rates for whale watching trips offered by ocean tours:

age ticket price
under 3 years free
3 to 12 years $36
over 12 years $48

on a certain day, the company took 92 people on whale watching trips. there were 40 children aged 12 and under, of which some children were under 3 years. if x represents the number of children under 3 years, which equation can be used to find the value of x, where c represents the total amount of money collected from tickets that day?
(92 − x)36 + (92 − 40) ⋅ 48 = c
(40 + x)36 + (92 − (40 + x)) ⋅ 48 = c
(92 + x)36 + (92 − (40 + x)) ⋅ 48 = c
(40 − x)36 + (92 − 40) ⋅ 48 = c