To get the answer. you have to find the unit rate.
To find the unit rate, divide 2.50 by 5 which is 0.5 or 50 cents.
(You can check to see if you did this right by multiplying, so .5x5=2.5)
Then you multiply .5 by 7 which is 3.5, or $3.50.
Answer:

Step-by-step explanation:
11. 1/81
12. 1/512
13. 1/81
14. 1/125
17. 1/72
18. 189/625
Answer:
it's (6,0) I can't explain though
Answer:
A
Step-by-step explanation:
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