Pls help I’ll brainlest ASAP pls

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.