I think they will meet in 4 minutes.
Explanation
10+15+15+15+15=70
150-20-20-20-20=70
Every minute the first balloon goes up 15 meters and the second balloon goes down 20 meters.
Answer:
Im sorry bro but there's no picture
Step-by-step explanation:
You can make 12, 13, 14, 21, 23, 24, 31, 32, 34, 41, 42, and 43. So 12 numbers
Answer:
60
Step-by-step explanation:
