Rachel is hosting the neighborhood barbecue party at her house and decides to grill hotdogs. Last year, a package of hotdog buns costed $7 and a package of hotdogs costed $10 and Rachel had bought 15 packages of buns and 15 packages of hotdogs at that time. Now the price of buns has increased to $8 a package, and the price of hotdogs remained at $10. Rachel decides she will only buy 10 packages of hotdogs this year. Using the mid-point formula, the cross-price elasticity is __________ and the goods are __________.

• a.)
• b.)
• c.)
• d.)

2; substitutes

5; substitutes

-1; complements

-3; complements