What can you observe about the segment that connect corresponding vertices

Really need on these. i have no idea what to do

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?