200%
We find the difference, then divide that by the original. 12-4/4 = 8/4 = 2
Multiply by 100 to get the percentage, = 200%
Also, adding 4 would be a 100% increase, and adding 8 is twice that, so 200%.
C

$12
If the cost c is at least $12 then it could be equal to 12, or could also be a cost greater than $12. So, c is greater than or equal to 12, expressed as <span>c

$12</span>
Answer:
1500
Step-by-step explanation: