Answer:
18%
Step-by-step explanation:
Percent change can be found using the following formula:

Original represents the initial cost where new represents the new cost. We multiply the answer by 100 to get the percentage:
= 18%
Answer:
A' (4,4), B' (5,7), C' (9,7)
Step-by-step explanation:
Answer:
$28.84
Step-by-step explanation:
That's for the first one that I found, the two other problems I don't know yet.
Answer:
4.2 percent
Step-by-step explanation: