Final answer:
The density of the metal is found by dividing its mass (43.5 g) by its volume (15 cm³), resulting in a density of 2.9 g/cm³, so the correct answer is A) 2.9 g/cm³.
Step-by-step explanation:
The student is asking about the density of a solid metal with a given mass and volume. The formula to calculate density is the mass of an object divided by its volume. In this specific case, the mass is 43.5 grams and the volume is 15 cm³. Using the formula, density (d) = mass/volume, the calculation would be:
d = 43.5 g / 15 cm³ = 2.9 g/cm³
Therefore, the correct answer to the student's question is A) 2.9 g/cm³.