21, 19, 25, 23
Step-by-step explanation:
I hope this helps!
SA = (L*W*2)+(W*H*2)+(L*H*2)
Answer:
13. 
14. 
15. 
16. 
17.
Step-by-step explanation:
Let "a", "b", and "c" real numbers.
- Commutative Property of Addition states that:

- Associative Property of Addition states that:

- Additive Identity Property states that:
- Commutative Property of Multiplication states that:

- Multiplicative Inverse Property states that:
(
)
Knowing these properties, we can solve the exercise:
13. By the Commutative Property of Addition:

14. By the Associative Property of Addition:

15. By the Additive Identity Property:

16. By the Multiplicative Inverse Property:

17. By the Commutative Property of Multiplication:
<h3>
Answer: the fraction -1/11</h3>
How to get this answer:
Use the slope formula
m = (y2 - y1)/(x2 - x1)
m = (14 - 9)/(-32 - 23)
m = (5)/(-55)
m = -1/11
The negative slope means the line goes downhill as you read it from left to right.
Paula will have run 2 1/2 + 2 1/2 = 5 miles in that hour, so her average speed is ...
... 5 miles per hour
_____
60 minutes is 1 hour.