Respuesta :
Answer:
B and C
Step-by-step explanation:
Since the price of one slice is B then 2 pieces has the price of 2B amd the total cost equals 2B+J
then to calculate the total cost for 7 days you have to multiply the cost for one day by 7 which is 7(J+2B) or if you expand that phrase you get 7J+14B