The neighborhood food collective produces jams and sells them to benefit local food banks. The collective produces a strawberry-rhubarb jam, and a strawberry-orange jam. The maximum number of jars of jam they can produce in their current space is 302. They do not have enough oranges to produce more than 134 jars of strawberry-orange jam. The collective can sell a jar of strawberry-rhubarb jam for a profit of $2.50, and a jar of strawberry-orange jam for a profit of $2.75. How many jars of each should the collective make to maximize its donation to the food bank? Formulate a linear programming model and solve it graphically.