Combine the like terms: 2x + 5 + 3

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

The sum of two numbers is 12 and their difference is 18 what are the two numbers

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.