Pls someone can you answer this :)

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review