I don’t understand this question from Khan Academy: The table below shows the amount of lemon juice and sugar need it to make three different size batches of lemonade using the same recipe. write an equation to describe the relationship between G amount of lemon juice in milliliters and asked amount of sugar in grams

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?