3000g : 2.4kg in its simplest form

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

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?