Step-by-step explanation
Given
Mass of metal = 24.2 g
Initial volume = 15.50 mL
Final volume = 18.4 mL
Volume occupied by metal = 18.4 mL - 15.50 mL = 2.9 mL
Solution
density = mass/volume
density = 24.2g/2.9 mL
density = 8.34 g/mL
Answer
Density of metal = 8.34 g.mL