Im sorry if im asking alot

They arrived at 12pm.

Step-by-step explanation:

7:30am + 4 hours = 11:30am.

You still have 30 minutes left, so add those together.

11:30am + 30 minutes = 12pm.

the time when they left = 7:30 am

The interval of the trip on the train = 4hours 30 minutes

that can be written as 4:30

so 7:30+4:30 = 11:60 = 12:00(ans)

Hope it helps

hm let me think hm think think hm think yes

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c