Which of the following units is equivalent to 3.1 × 10-3 meters per year? a. 3.1 kilometers per year b. 3.1 centimeters per year c. 3.1 decimeters per year d. 3.1 millimeters per year

Let's simplify step-by-step.

t−8−(t+15)

Distribute the Negative Sign:

=t−8+−1(t+15)

=t+−8+−1t+(−1)(15)

=t+−8+−t+−15

Combine Like Terms:

=t+−8+−t+−15

=(t+−t)+(−8+−15)

=−23

=−23

Step-by-step explanation:

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