Ithink the answer is 24 idk but i need plz

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

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

How do you write something in scientific notation?