Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table.

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Alonso walked with his friend andy one day, and wanted to compare their speeds. alonso walked 3 miles in one hour, and andy walked 2 miles in 2 hours. complete the table to graph the relationship for each person.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items