Use cross products to solve each proportion n/8= 15/4 and 20/t= 2.5/6 and 6/11=0.12/z and 15/24=x/10

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