The table below shows the ticket rates for whale watching trips offered by ocean tours. age ticket price under three years free three 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 three years. if x represents the number of children under three 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?