Answer: -2 i believe because if you take and subtract one from 8 you should get 9
Step-by-step explanation:
Answer: i think 130 and 80
Step-by-step explanation: sorry if wrong
$9 is discounted from the regular price. If you find the discounted price you get $21. Then subtract the 21 from 30 and you get 9
Answer:

Step-by-step explanation:
Answer: i am pretty sure its B
Step-by-step explanation: