In one hour Dele walks 8km. how long will it take her to walk 14km at the same rate​

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Asap! i'm not good math and i'm lost.