Well if you tell me the distance of abcd from the speaker I could help u
Answer:
I think the answer is C, sorry if I'm wrong
Answer:
It will take rob 7 minutes to climb the stairs tomorrow.
Step-by-step explanation:
1000/25=40
Rob climbed 40 stairs per minute
280/40=7
Therefore, it will take rob 7 minutes to climb 280 stairs.