Phoebe compared the cost of books in 9 different stores.

$2, $8, $4, $7, $8, $5, $8, $4, $6

what is the median cost of the books?

$4

$6

$7

$8

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.