a.

To explain:

The given expression 7|280 is correct.

To determine

b.

To explain:

The given expression 19|(3800+19) is correct.

To determine

c.

To explain:

The given expression 15|24⋅35⋅5 is correct.

To determine

d.

To explain:

The given expression 19|(3800+37) is correct.

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Chapter 4.1A, Problem 6A

Chapter 4.1A, Problem 8A

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