no links .Pwease help this is very important I will give you brain thing if its correct (its a test) No links Please ♡

What kinds of numbers have an odd number of factors?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

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.