The regular price of a child's entry ticket to a water park is $9 less than that for an adult's. The park offers half off all entry tickets during the off-peak season. The Sandlers paid a total of $132 for 1 adult ticket and 4 child's tickets to the water park during the off-peak season. What is the regular price of a child's ticket?
+37159 reg child = a - 9 on sale value = (4) 1/2(a-9)
One adult ticket on sale value = 1(1/2)a summed = 132
4 (1/2)(a-9) + 1/2 a = 132
2.5 a - 18 = 132
a = $ 60 adult regular price child is a-9 = $ 51
