Colby has 2 quarters in his pocket. nikki gives colby 5 pennies that she found on the floor. how much money colby have now?

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 of the following contains a variable?

Can someone me with my math problem pls my teacher is on my back about this