The table below shows the ticket rates for whale watching trips offered by beluga fun tours: age ticket price under three years free three to 12 years $34 over 12 years $45 on a certain day, the company took 103 people on whale watching trips. there were 64 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?