Which statements about opposites are true?

select each correct answer.

a. the opposite of a number is always a negative number.

b. the opposite of the opposite of a number is the number itself.

c. the opposite of a number is 1 divided by that number.

d. a non-zero number and its opposite are located on opposite sides of zero on a number line.

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the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

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step-by-step explanation:

nndncnd cnn

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