Now that the power of 10 is the same in both figures, you can just look at the first factors of each figure. So, how many times smaller or larger is the first factor of the mass of an average grain of table salt than the first factor of the mass of an average grain of rock salt?

2

step-by-step explanation:

1+1=2

the answer is d

step-by-step explanation:

my answer is$ 12

step-by-step explanation:

because 15 -2=12

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d