The cost to enter a carnival is $10. The Rockin’ Roller Coaster costs an additional $1.50 per ride. Which recursive formula shows the sequence of the total cost for rides on the Rockin’ Roller Coaster, including the cost to enter the carnival? 
O a₁ = 11.50 
 aₙ = 1.50aₙ₋₁ + 10 where n > 1 
O a₁ = 11.50 
 aₙ = aₙ₋₁ + 1.50 where n > 1 
O a₁ = 10 
 aₙ = 1.50aₙ₋₁ where n>1 
O a₁ = 1.50 
 aₙ = aₙ₋₁ + 10 where n>1