What is the area of this figure below? *
4 points
Captionless Image
30 feet squared
10 feet squared
21 feet squared
18 feet squared

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 similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

Use sigma notation to represent the following series for 9 terms.