Kendra needs 2 3/4 cups of flour for cookies, 4 1/2 cups of flour for bread, and cup of flour 2/3 for biscuits , How much flour does she need in all?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Find the maximum value of p= 4x + 5y subject to the following constraints :

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?