Provide an appropriate response.
Give an example of subtraction that is commutative and one that is not.
What will be an ideal response?
Answers will vary.
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Find the opposite of the number.-16
A. -1 B. -16 C. 16 D. 0
Find the ratios of products A, B, and C using a closed model. A B C 
A. 3: 3: 2 B. 4: 8: 3 C. 8: 16: 3 D. 3: 2: 3
Choose the most reasonable measurement for the situation described.What is the most reasonable measurement for the height of a tall skyscraper building?
A. 337 cm B. 337 km C. 337 mm D. 337 m
Solve.For a certain computer desk, the manufacturing cost C per desk (in dollars) is C = 
where x is the number of desks manufactured.a. Find the average cost per desk when manufacturing 200 desks.b. Find the average cost per desk when manufacturing 1000 desks.
A. a. $480 b. $440 B. a. $440 b. $408 C. a. $80 b. $48 D. a. $360 b. $392