The table below shows prices for a local bowling alley.

item price
shoe rental $2.75
one game $2.50
small soda $0.95
large soda $1.50
Nachos $ 1.75

Valerie rented shoes, bowled 4 games, and bought 2 orders of Nacos. She used a coupon for half off the price of food. What was the total cost before tax, of Valerie's trip to the bowling alley?