we have a palleloogram and they gave us one given angle which is it 130 and the question is calculate it's angles​

Zhao xue wants to buy milk and yogurt. she wants to buy a total of at least 6.5 gallons of dairy products (condition a), and she has a budget of $20 (condition b). the graph represents the constraints on the number of gallons of milk m and yogurt y zhao xue buys. zhao xue buys 4 gallons of milk. how many gallons of yogurt can she buy to meet both her constraints? a.) exactly 2.5 gallons b.) at least 4 gallons and at most 6.5 gallons c.) at least 2.5 gallons and at most 4 gallons d.) zhao xue doesn’t have enough money left to buy any yofurt