Agroup of families decide to go to the amusement park. there are a total of 25 people who will be going. there are a mix of adults and children in the group. it costs $17.50 for each children's ticket and $35 for each adult ticket. tickets for the entire group cost $536.50 in total. let a=number of adults. let c=number of children. complete each statement. the equation that represents the total number of people is . the equation that represents the total cost of all the tickets is .