Positive and Negative Numbers in Context

What number is the opposite of the opposite of −2.5?

Determine whether each situation is represented by 4 or -4.

A baseball team earns 4 points for a home run.

• 4

• -4

Determine whether each situation is represented by 4 or -4.

The temperature is 4 degrees below 0 degrees Fahrenheit.

• 4

• -4

Determine whether each situation is represented by 4 or -4.

Mikayla spends $4 from her account to download a new movie.

• 4

• -4

An elevation of –4 m is higher than an elevation of –8 m. An elevation of –8 m is lower than an elevation of –6 m. Which set of inequalities correctly expresses these relationships?

An elevation of –2 m is higher than an elevation of –10 m. An elevation of –10 m is lower than an elevation of –1 m. Which set of inequalities correctly expresses these relationships?