An object of unknown metal has the following dimensions: 5.00cm long, 2.00cm wide, and 3.00cm tall. The mass of the block is known to be 79.5g.

#10 What is the formula for density?
1 point
D = V/m
D = m/V *
D = g/mL
D = m x V

#11 What is the volume of the object in cm^3? *
1 point
13
30.0*
10.0
300

#12 What is the density of the object in g/cm^3?
1 point
3.7
2.65
0.37*
0.377

#13 If the object was made of aluminum which has an accepted density of 2.70 g/cm^3, what is your percent error?
1 point
2.00%
1.85%
3.0%*
4.0%

2 answers

#12 and #13 need work

Are the answers:
12) B
13) D
?