Answer:
Associative Property of Addition
Step-by-step explanation:
From the list of given options, option A correctly answers the question and this is because
--- (1)
or
--- (2)
<em>The above illustrations only apply to Associative Property of Addition</em>
In Crystal's case:

This can be compared to (1) above
Hence;
<em>Option A answers the question</em>
Answer:45 minutes
Step-by-step explanation:since you walk 4 miles an hour in half of one you walk 2
I don't know sorry anjsjdjd
9. i dissagree because 0.70 and 0.7 is the same thing
10. is 1.45
11. is 0.37