Record the length of the copper rod in centimeters: Record the length of the copper rod in millimeters:

Acylinder has volume 45π and radius 3. what is it’s height?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.