ILL BRAINLIEST YOU PLEASE HELP ME PLEASE I NEED HELP

Find the sum of the following series. round to the nearest hundredth if necessary.

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

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