Hot dog cost = 3.50x2 = $7
Peanuts cost = $4
A Coupon of $3
Total paid amount by mark = $11.50
Cost of a large soda = ?
Total spent amount along with the coupon = 11.50 + 3 = $14.50
The cost of hot dogs and peanuts = 7 + 4 = $11
Thus
the cost of large soda = 14.50 – 11 = $3.50
