When x=4 and y=6 z= 48. write the function that models each of the following relationships. z varies inversely with x and directly with y

z varies jointly with x and y

z varies directly with x and inversely with the square of y

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The table below lists recommended amounts of food to order for 10 party guests. how much of each food item should nathan and amanda order for a graduation party with 55 guests? use the table to answer. item amount fried chicken 16 pieces lasagna 7 pounds deli meats 1.8 pounds sliced cheese 1 and two fifths pounds bakery buns 1 dozen potato salad 2 pounds