Pebbles corporation has two manufacturing departments--casting and finishing. The company used the following data at the beginning of the year to calculate predetermined overhead rates:.

What does a triple-beam balance require the user to do? add the numbers from the three sliders to determine the mass of an object multiply the numbers from the three sliders to determine the mass of an object add the numbers from the three sliders to determine the volume of an object multiply the numbers from the three sliders to determine the volume of an object