Answer:
the answer is D.
Explanation:
a,b,c are all wrong
4. Force 1 Force 2 Comparison of Forces
Friction Gravity Force 1 is equal to Force 2
density = mass /volume
1)mass of rock = 26.0 gram
2)volume of rock = volume of water it has displaced= 25.3-13.12 = 12.18
put the value of mass and volume in first equation and get the density value
7.59