A car cost $7200 after a 20% decrease. What did it cost originally ? A) $8000
B) $8800
C) $9000
D) $9200

The answer is C) $9000

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.