Respuesta :

choixongdong
children under 12 is a base charge 1 dollar plus 25% of child's age.
y = child's age

so 
equation: 
cost = 1 + 0.25y

if child's age = 9 , y = 9
so
cost = 1 + 0.25 * 9
cost = 1 + 2.25
cost = 3.25

Answer is B
1 + 0.25y; 3.25
helloimA
The answer should be B. i think my work says it’s B. so hope it helps :)