According to the study unit, the commutative property means a. the way the numbers are grouped does affect the sum. b. the order in which you add the numbers does affect the sum. c. the order in which you add the numbers doesn't affect the sum. d. the way the numbers are grouped doesn't affect the sum

C. the order in which you add the numbers doesn't affect the sum.

Step-by-step explanation:

The Commutative Property for sum states that the order in which we add the numbers doesn't affect the sum of numbers. i.e.

(a + b) + c = a + (b + c)

Example, (5 + 4) + 2 = 9 + 2 = 11

5 + (4 + 2) = 5 + 6 = 11

Hence, Option C is only correct answer.

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

1     sepan

2     encuentren

3     tenga

4     hable

5   parezca

6   llegue