A container of olive oil has a volume of 100 mL. If the olive oil has a mass of 90 g, what is its density?
A. 0.9 g/mL
B. 1.0 g/mL
C. 1.1 g/mL
D. 10 g/mL

An unknown mineral sample has a mass of 70 g and a volume of 20 cm³. Which mineral could the sample be?
A. turquoise (density = 2.7 g/cm³)
B. fluorite (density = 3.2 g/cm³)
C. topaz (density = 3.5 g/cm³)
D. corundum (density = 3.9 g/cm³)

To find the mass of an object using volume and density, use the formula .
A. m = V x D
B. m = V - D
C. m = V/D
D. m = D/V