6758453675 divided by 678

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 perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

What is always true about a positive integer raised to a negative odd power?