Answer:
The expected number of adult workers with a high school diploma is 4 out of 10
Step-by-step explanation:
4 out of 10 = 40%
In order to subtract fractions, you need the denominators (bottom number) to be the same.

.
The answer would be -12+8i
Answer:
The density of cube is 6.17959 
Step-by-step explanation:
The density is given by ration of a mass of body and volume occupied by a body.

Where,
is density.
m is mass of a body
V is the volume of a body
Given that one side of the cube is 0.53cm
Hence, the volume of a body is V=
=0.148877
Now, the Density of the cube will be



Thus, The density of cube is 6.17959 
I believe tye answer is C