Answer:

2 400 pipes

Step-by-step explanation:

60 min. = 1 hour

60 min. × 40 hours

= 2 400 pipes

Answer:

2 400 pipes and visayas poem about mima you very much and visayas poem about mima you very much for your help today and visayas poem about mima you very much for your help today and visayas poem about mima you very much

Step-by-step explanation:

thank you very much for your help