If Tom travels 680 miles in 8 hours, how far does he travel per hour?​

Evaluate the following expression 1/3^2

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?