31/5 times 3 1/6 in simplest form

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

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

Is it greater than or less than7*3_9*2