Band$-$x produces wrist bands. The company makes two types of wrist bands one made of silicone and one made of leather. Demand for the product is so high that the company can sell as many of each type of wrist band it can produce. The same machinery is used for both types of wrist bands. The machinery is available for only $5,000$ hours per period. The company can produce $50$ silicone wrist bands every hour compared to $20$ leather wrist bands in the same amount of time. Fixed expenses are $$250,000$ per period. Sales prices and variable costs are as follows: