9. If a pizza maker pays $1 for tomatoes, $1 for cheese, $2 for sausage, and sells the pizza made wi
問題詳情
9. If a pizza maker pays $1 for tomatoes, $1 for cheese, $2 for sausage, and sells the pizza made with theseingredients for $7, then each pizza sold contributes how much to GDP? (A) $3 (B) $4 (C) $7 (D) $11