Hernando ate 2/8 of a pizza for a dinner. He gave his 6 friends the rest of the pizza and told them to share it equally

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Asphere has a diameter of 10 in. what is the volume of the sphere?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.