What is 1+1? pls, I need help. its for school

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.

What describes horizontal cross section of the right rectangle 6m 8m 5m

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11