Which of the following is an example of the Associative Property of Addition? A. c • (3 • f) = (c • 3) • f B. c • 3 = 3 • c C. c + 3 = c + 3 D. c + (3 + f) = (c + 3) + f

D

Step-by-step explanation:

Associative property states that the sum of three or more numbers stays the same no matter how the numbers are grouped.

A is not correct because it is multiplication not addition and it asked for addition

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula