<human>:  In the city park, there are various attractions for kids and their parents. The entrance ticket to the park is $5, but for each attraction, you have to pay separately - such ticket costs $2 for kids and $4 for parents. How much would a family with 4 children, their parents, and her grandmother pay for visiting the park, and one attraction inside?
<bot>: How many people are in the family? ** The whole family consists of 4 + 2 + 1 = <<4+2+1=7>>7 persons.
How much does the entrance ticket cost? ** The entrance ticket to the park costs the same for every person, so the family would need to pay 7 * 5 = $<<7*5=35>>35 to enter.
How much would the kids' tickets cost? ** For visiting the attraction the tickets would cost 4 * 2 = $<<4*2=8>>8 for the kids.
How much would the parents' and grandmother's tickets cost? ** Their parents and grandmother would need to pay 3 * 4 = $<<3*4=12>>12.
How much would the family's total cost be? ** That means a total cost for the family standing at 35 + 8 + 12 = $<<35+8+12=55>>55.
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