Answer:
The unit price of a 4 pound bag of sand is $0.13.
Step-by-step explanation:
0.52÷4=$0.13
Answer:

Step-by-step explanation:
=> 
=> 
Since b = 11 , So
needs to be added to both sides
Adding
to both sides
=> 
Completing the square
=> 
=> 
Answer:
17. 5
18. 9
19. 8
20 8
Step-by-step explanation:
Part A: 5.25
Average speed is 5.25 mi per hr
Part B: 8 hrs because
42 divided by 5.25 is 8