Aparticular train is 14 ft tall. a model of it was built with the 3 in : 2ft. how tall is the model

For the model, every 2 feet would equal 3 inches or every foot would equal 1.5 inches.
You can divide to see how many 2 feet are in 14 feet.

Since there are 7, you can multiply by 3 to see how many inches the model is.

The train model is 21 inches tall.

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.