Ineed . did i do good and need on number 7.

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.

Which number line represents the solution set for the inequality - x 24?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf