Which expression illustrates the associative property of addition?

a. (3 + 19) – 12 = (3 + 12) – 19

b. 3 + (19 – 12) = 3 + (19 + 12) (not b)

c. (3 + 19) – 12 = 3 + (19 – 12)

d. 3 + (19 –12) = 3 – (19 + 12)

C.(3+19)-12=3+(19-12)

Step-by-step explanation:

We  have to find an expression which illustrate the associative property.

We know that associative property of addition  of three numbers a, b and c

A.(3+19)-12=(3+12)-19

(3+19)-12=10

(3+12)-19=-4

It is not associative property of addition because both sides are not equal.

B.3+(19-12)=3+(19+12)

3+(19-12)=10

3+(19+12)=34

It is false because both sides are not equal .

C.(3+19)-12=3+(19-12)

(3+19)-12=10

3+(19-12)=10

It is illustrate the associative property of addition.

D.3+(19-12)=3-(19+12)

3+(19-12)=10

3-(19+12)=-28

Both sides are not equal . Hence , it is false.

the answer is c

hope this !

25.2

step-by-step explanation:

2+4x6-8/10= 25.2