12a + 12b + 12c + 12d
Michael writes the expression shown here as 12(a + b + c + d). He is correctly using the property.

A) associative
B) commutative
C) distributive
D) symmetric

C. Distributive.

Step-by-step explanation:

This is the distributive property.

We take the common factor out and the a b c and d go into the parentheses.

Another example  is:

3x + 12 = 3(x + 4).

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

the answer is:

mean: 6

mad: 2.14