Simplify the following expression 6.187-0.36

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 is the solution to the equation below? 3/x-2+6=square root x-2 +8

Solve the equation for b: a= (1/2)(b)(h)