- Olaf has 15 tokens for the Huntsville Halloween Faire. Milkshakes cost 2 tokens and tickets to the Haunted House cost 3 tokens. His value for milkshakes is $3 times the square root of the number of milkshakes. His value for tickets is $6 - ($3 / number of tickets). How many milkshakes and tickets should Olaf purchase? A. 1 shake and 4 tickets B. 1 shake and 3 tickets C. 4 shakes and 2 tickets D. 4 shakes and 1 ticket E. 9 shakes and 1 ticket