Answer:
Item B.
Step-by-step explanation:
Density = mass / volume .
We are given that the density of platinum is 21.
For items A and C the density = 42/2 and 147/7 which are both 21.
Item B is the answer
Its density = 87.5 / 5 = 17.5.
Item B
The image says "The density of platinum is approximately 21 grams per cm."
The First item is true because 42 divided by 2 = 21 and 147 divided by 7 = 21 and Item B says 87.5 divided by 5 = 17.5 and 17.5 is lower than 21.
