Respuesta :
Answer:
B
Step-by-step explanation:
For each box, there is 1 defective lightbulb. Therefore, a delivery of 4 boxes will have 4 defective lightbulbs. A delivery of 2 boxes has 2 defective lightbulbs. 4 defective lightbulbs subtracted by 2 defective lightbulbs equals 2 more defective lightbulbs in 4 boxes than 2. Therefore, it is B.
Answer:C
Step-by-step explanation: 4 boxes , 8 are defective (in total) therefore 2 balls are defective in each . multiply and see what goes by 2’s and done.