There are two boxes that are the same height. The one on the left is a rectangular prism whereas the one on the right is a square prism. Choose the true statement

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce