$37 for tickets
3 * 4.75 = $14.25 for popcorn
$3.89 for candy
so you add $14.25 + 3.89 and you get the amount mike paid for food which is $18.14
2 * $4.39 = $8.78 for sodas
2 * $2.75 = $5.5 for waters
so you add $8.78 + $5.5 which is the amount paid for drinks which is $14.28
so he spent $69.42 for the family trip