Here are two similar rectangles *
2 points
15cm
2.5cm
1.5cm
cm
Work out the missing length
6cm

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

98 point question what is the record for most points in one

With both problems. a.s.a.p directions on photo ^