I need help on this test. Will give Brainliest to whoever answers first! Pt. 3

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

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?