PLS HELP ASAP Find the volume of the hemisphere. Round to the nearest tenth. the hemisphere ft(or radius i guess) is 4

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 area of a rectangle is 54x^9y^8 square yards. if the length of the rectangle is 6x^3y^4 yards, which expression represents the width of the rectangle in yards

Ined this is due tomorrow and i dont know the answer can you find all the exponents