Answer:
A, complementary angles sum up to 90°
It is given in the question that
The school is 625 meters far from Alex house. It took him 15 minutes to go from home to school, and run back to home in 10 minutes.
Total distance is 625 meters and total time taken is

Average speed is


Answer:
145
Step-by-step explanation:
steps in attached illustration
1. Simplified is 0
2. Simplified is 6
3. Simplified is 12
4. Simplified is -4
5. Simplified is -1
6. Simplified is -1
-x > - 5 is also true. B.
When you divide by a negative number you change the direction of the inequality sign.