What was the US focused on in Haiti starting in 1915? Select two options. investment in infrastructure education reform government stabilization military occupation support of rebel groups

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