Shopping Cart Checkout details Order Complete Remove item Thumbnail image Product Price Quantity Subtotal Linear and Integer Optimization $32.00 Linear and Integer Optimization quantity $32.00 The Behavior Code $6.40 The Behavior Code quantity $6.40 Resources for Reform $5.20 Resources for Reform quantity $5.20 Coupon: Apply coupon Update cart Cart totals Subtotal $43.60 Total $43.60 Have a coupon? coupon: Apply Proceed to checkout