Which expression has the same value as 59.2 - 84.7? Show work

a. 84.7 - 59.2

b. - 84.7 + (-59.2)

c. 59.2 - (-84.7)

d. 59.2 + (-84.7)

How do we do order of operations

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Give example of a function f: N-> N which is: (a) injective but not surjective. (b) surjective but not injective. (c) bijective but not identity function.

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5.2 turned into a fraction in simplest form.

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