This dot plot shows the number of cakes sold each day in aunt Alice cake shop last month. what is the number of cakes sold is an outliner

Ineed here’s a picture of the question

The curved part of the figure is the semicircle what is the best approximation for the area of this figure

Maria has $10,000 to invest in two accounts.he decides to invest one part in an account with 5% interest and the rest in an account with 8% interest. at the end of the year he has earned $702,50 in interest.¿how much did maria invest in the 8% account?