Q1. Your friend Sam has been asked to do appetizers for auniversity reception. She has an unlimited amount of ingredients and 6 hours in which to prepare them. Sam can make 200 mini-sandwiches or 160 servings of melon slices topped with smoked salmon and a dab of sauceper hour.

a. Sam's opportunity cost of making one mini-sandwich is(circle to right one)0.8 melon appetizer1.25 melon appetizers.

b. Sam's opportunity cost of making one melon appetizer is(circle to right one)0.8 mini-sandwich1.25 mini-sandwiches.

c. Suppose the reception has been postponed, and Sam has an extra 4 hours to prepare. The opportunity cost of making one mini-sandwich is now(circle to right one)1.25 melon appetizers0.8 melon appetizer.

d. Suppose the reception has been postponed, and Sam has an extra 4 hours to prepare. The opportunity cost of making one melon appetizer is now(circle to right one)0.8 mini-sandwich1.25 mini-sandwiches.

e. Suppose Sam's friend Chris helps by preparing the melon slices, increasing Sam's productivity to 200 mini-sandwiches or 200 melon appetizers per hour. The opportunity cost of making one mini-sandwich is now(circle to right one)1.25 melon appetizers1 melon appetizer.

f. Suppose Sam's friend Chris helps by preparing the melon slices, increasing Sam's productivity to 200 mini-sandwiches or 200 melon appetizers per hour. The opportunity cost of making one melon appetizer is now(circle to right one)1.25 mini-sandwiches1 mini-sandwich

Q2 Suppose three volunteers are preparing cookies and cupcakes for a bake sale. Diana can make 17 cookies or 28 cupcakes per hour; Andy can make 15 cookies or 27 cupcakes per hour; and Sam can make 0 cookies or 22 cupcakes per hour.

a. Who has an absolute advantage at making cookies?

(circle to right one)AndyDianaSam.

b. Who has an absolute advantage at making cupcakes?

(circle to right one)AndyDianaSam.

Q3. Maya and Max are neighbours. Both grow lettuce and tomatoes in their gardens. Maya can grow 45 heads of lettuce or 9 kilograms of tomatoes this summer. Max can grow 42 heads of lettuce or 6 kilos of tomatoes this summer.

If Maya and Max specialize and trade, the price of 1 kilo of tomatoes (in terms of lettuce) would be between(circle to right one)5 and 75 and 64 and 84 and 7heads of lettuce.